what element has fewer valence electrons than magnesium

Answers

Answer 1
Any element in the first column of the periodic table. Hydrogen, lithium, sodium, and potassium are a few examples

Related Questions

Explain the relationship between a hypothesis and a theory. Then give an example of something that would cause a hypothesis or a theory to be revised or discarded.

Answers

Answer:

Hypothesis is a written observation, that has not been proven correct, but is written after observation of a specimen. Proving this particular hypothesis, shows the interconnectivity/ relationship between a hypothesis and a theory.

Explanation:

Simply put, a hypothesis is a written observation, which may or may not be true, while a theory is established when a hypothesis is proven correct.

AN EXAMPLE OF SOMETHING THAT COULD MAKE A THEORY TO BE REVISED:

If other laws or theories put before it controversies it.If its observations where not correctly written.If it cannot stand the test of time.If further experiments doesn't show the same result.

Hypothesis is  either written or evidence based observation but it has to be proven where as when a hypothesis is proved by doing experiments multiple times and getting same results then it is called as as scientific theory.  

What is scientific theory ?

scientific theory can be  a structured form where a group of facts can meet and  be explained by using scientific hypothesis and laws, each theory can be proved by doing experiments and applying scientific method.

Scientist will design an experiment and conduct the experiment to test  and prove that hypothesis; If the result of hypothesis is incorrect, then new hypothesis will be set and new experiment will begin.

If the result of  hypothesis is correct, repeated tests  have been done to ensure the accuracy of the result.

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What are the main factors in ecosystem diversity?

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Ecosystem diversity deals with the variations in ecosystems within a geographical location and its overall impact on human existence and the environment. ... An example of ecological diversity on a global scale would be the variation in ecosystems, such as deserts, forests, grasslands, wetlands and oceans.

The main factors in ecosystem diversity include the physical characteristics of the environment and the diversity of species present.

What is Diversity?

This involves the environment containing different types of species and is affected by certain factors.

The factors which affect ecosystem diversity include physical characteristics of the environment and the diversity of species present.

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Name and describe the five types of active transport systems.

Answers

Answer:

Please Mark as Brainliest. Please!!!!!!!!!!

Explanation:

Definition

Active transport is the process of transferring substances into, out of, and between cells, using energy. In some cases, the movement of substances can be accomplished by passive transport, which uses no energy. However, the cell often needs to transport materials against their concentration gradient. In these cases, active transport is required.

Active transport requires energy to move substances from a low concentration of that substance to a high concentration of that substance, in contrast with the process of osmosis. Active transport is most commonly accomplished by a transport protein that undergoes a change in shape when it binds with the cell’s “fuel,” a molecule called adenosine triphosphate (ATP).

For example, one type of active transport channel in the cell membrane will bind to the molecule it is supposed to transport – such as a sodium ion – and hold onto it until a molecule of ATP comes along and binds to the protein. The energy stored in ATP then allows the channel to change shape, spitting the sodium ion out on the opposite side of the cell membrane. This type of active transport directly uses ATP and is called “primary” active transport.

Another type of active transport is “secondary” active transport. In this type of active transport, the protein pump does not use ATP itself, but the cell must utilize ATP in order to keep it functioning. This will be explained in more depth in the section on Symport Pumps below.

Lastly, active transport can be accomplished through processes called endocytosis and exocytosis. In exocytosis, a cell moves something outside of itself in large quantities by wrapping it in a membrane called a vesicle and “spitting out” the vesicle. In endocytosis, a cell “eats” something by wrapping and re-forming its membrane around the substance or item.

Each type of active transport is explained in more detail below.

Types of Active Transport

Antiport Pumps

Antiport pumps as an example of active transport

Active transport by antiport pumps

Antiport pumps are a type of transmembrane co-transporter protein. They pump one substance in one direction, while transporting another substance in the opposite direction. These pumps are extremely efficient because many of them can use one ATP molecule to fuel these two different tasks.

One important type of antiport pump is the sodium-potassium pump, which is discussed in more detail under “Examples of Active Transport.”

Symport Pumps

Symport pumps take advantage of diffusion gradients to move substances. Diffusion gradients are differences in concentration that cause substances to naturally move from areas of high to low concentration.

In the case of a symport pump, a substance that “wants” to move from an area of high concentration to low concentration down its concentration gradient is used to “carry” another substance against its concentration gradient.

One example of a symport pump – that of the sodium-glucose transport protein – is discussed below under “Examples of Active Transport.”

Sympoter pump as an example of active transport

Active transport by symporter pumps

Endocytosis

In the third type of active transport, large items, or large amounts of extracellular fluid, may be taken into a cell through the process of endocytosis.

Which trait can be passed from one generation to the next by genes? A. The ability to speak German B. Red hair color C. A broken arm D. A shaved head
Plz help me ​

Answers

Answer:

Red hair color

Explanation:

i promise you im right.

Answer:

red hair color.

Explanation:

because red hair is a gene that you can get from you parent or some other family members. a shaved head you cut, speaking german is a trait YOU learn and that you don't get from a member of your family

help what goes where help asap will try to mark brainliest!!​

Answers

Go from the bottom of the food chain to the top, the grass is eaten by herbivores, the bird and frog eat insects, and the snake is a carnivore and eats the other animals.

today's midterms and I just want to say good luck to you all. (we're doomed)

Answers

Answer:

lol, good luck dude ur gonna need it.

Feeding relationships within a community can be represented by

Answers

The answer to your question isrelationship

Words to Know Write the letter of the definition next to the matching word as you work through the lesson. You may use the glossary to help you. eukaryote A. A protective layer surrounding a cell that controls what enters and leaves the cell spore B. An organism composed of one or more cells that contain nuclei cell membrane C. A reproductive cell that is resistant to harsh conditions and capable of developing into an adult without fusing with another cell prokaryote D. A single-celled organism that lacks a nucleus and membrane-bound organelles

Answers

Answer:

Statement A - cellular membrane

Statement B - eukaryote

Statement C - spore

Statement D - prokaryote

Explanation:

The cell membrane is a protective layer present around the cell and cell organelle that regulates and allows different molecules to enter and exit to regulate homeostasis.

Eukaryotes are the organism that can be unicellular or multicellular with the cells contain a nucleus in it.

Spores are reproductive cells that has a resistant layer that protects the cell from an unfavorable condition and capable to form an adult.

An organism that is unicellular and lacks the nucleus is known as a prokaryote and bacteria is an example of such organisms.

Help Please
What is the chemical reaction of carbon dioxide (or an example of a chemical reaction of carbon dioxide)

Also, does carbon dioxide create a reactant or product?

Answers

Answer:

co2 reacts with hydrogen in a reversible reaction to form carbonic acid

Explanation:

if u want the equation lem me know

What's the difference between inference and observation? Give examples of each.

Answers

Answer:

A inference is a conclusion reached on the basis of evidence and reasoning.

A observation is an act or instance of regarding attentively or watching

Explanation:

Example for a inference would be - lets say you notice someone isnt acting like theirself you may infer that their not having a good day or their not in a mood

Observation example- when your doing a lab for science you may observe the different types of utensils or the effects of the object you use like oh this is blue or something

3. What is the relationship between
adaptation and natural selection?

Answers

Answer:

hope it helps...

Explanation:

Evolution is not the same as adaptation or natural selection. Natural selection is a mechanism, or cause, of evolution. Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations.

Ivan reads a story about a population of mice that become stranded in a dark jungle. Some mice are dark brown, while others are white. According to the process of natural selection, predict which mice would be more successful living in a dark jungle. Explain natural selection and your prediction.

Answers

Answer:

The dark brown mice would be more successful in a dark jungle since the darker color of their fur would make it hard for predators to spot them.

The process of natural selection, predict which mice would be more successful living in a dark jungle is de dark brown.

What is natural selection?

Natural selection is one of the main mechanisms of evolution. In a very simple way, we can say that natural selection is a process in which the fittest organisms are selected, survive in the environment, reproduce and pass their characteristics on to their descendants.

In this case, as it is a very dark forest, an animal with a white coat will attract more attention while an animal with a dark brown color will only be camouflaged in the environment.

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What is the function of an animal cell I really need help!

Answers

Answer: They are eukaryotic cells, meaning that they have a true nucleus and specialized structures called organelles that carry out different functions. Animal cells do not have plant-specific organelles like cell walls, which support the plant cell, or chloroplasts, the organelle that carries out photosynthesis.

PLEASR HELP- 24 points!

What front brings the most severe weather?
-Cold Front
-Warm Front
-Stationary Front

Answers

Answer:

cold fonts

Explanation:

hope this helps

HWLPPPPPPPAHWOWAJAOAKSNSKWKEKEOEL

Answers

Answer:

glycolose

Explanation:

Only eukaryotic cells have
cytoplasm
membrane bound organelles
DNA
ribosomes

Answers

membrane bound organelles

What is the term for an organism that makes its own source of chemical energy?
protist
B chloroplast
decomposer
D producer

Answers

Answer:

D thxs good luck on your test

Explanation:

what does photosynthesis and cellular respiration have in common?​

Answers

Photosynthesis involves the use of energy from sunlight, water and carbon dioxide to produce glucose (Sugar) and oxygen.


Cellular respiration uses glucose and oxygen to produce carbon dioxide and water.

Both use ATP (Adenosine triphosphate)

Help me answer that question and how are you supposed to know which one is the predator and the prey like how can you tell?

Answers

Answer:

predator is blue, prey is red

Explanation:

when the amount of predators increase, the blue line rises, the red line lowers. when there is more predators there is going to be a less amount of prey.

1. What is the role of a receptor in helping an
organism maintain homeostasis?
A. receives messages sent by the control center
B. carries out a response to restore internal
conditions
C. detects stimuli and sends information to the
control center
D. compares current conditions with ideal values
for those conditions

Answers

Answer:

b

Explanation:

Homeostasis has been the tendency of the organism to maintain the equilibrium state. The stimuli are detected and transmitted to the control center by the receptors. Thus, option C is correct.

What is homeostasis?

Homeostasis is the physiological process that monitors the internal environment of the body. This involves the feedback system that includes receptors that report and transfers the information to the control center of the body.

The receptor is involved in detecting the stimuli in order to generate the response through the feedback control system. The mechanism involves the effector that provides a response to the stimuli detected and transmitted by the receptors.

Therefore, in option C. the receptor sends information by detecting the stimuli.

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A sandwich shop sells 4 veggie subs for every 5 turkey subs. The shop sold 27 subs today. How many of each kind did they sell? i need help plz !!!!!!!!!!!! due 1:00

Answers

Answer:

3 each

Explanation:

The question said 4 veggie subs for every 5 turkey subs.

So every time 5 turkey subs were sold it lead to the increase of both

which organelle packages proteins in vesicles and sends them to the body where they are needed.

Answers

Answer- The Golgi apparatus gathers simple molecules and combines them to make molecules that are more complex. It then takes those big molecules, packages them in vesicles, and either stores them for later use or sends them out of the cell. It is also the organelle that builds lysosomes (cell digestion machines).
Hope this helps:)

PLZZZZZZ I NEED HELP ASAP I ONLY GOT A LIL TIME PLZZ HELP :)

Answers

Answer:

B. The first generation will not have short plants. The short trait will return in the second generation.

Explanation:

If T is for Tall and t is for short, then the first generation doesn't have any short offspring. We can rule out answer choices A and D.

The second generation results in TT, Tt, Tt, tt.

TT is a tall Offspring.

Tt is a Tall Offspring, with a small t as a recessive trait.

tt is a short offspring because both the recessive traits (t) are together.

We can rule out option C.

That leaves us with the correct answer being B. The first generation will not have short offspring, but will pass it on to the second generation, which will have a short offspring (25% chance of having short offspring).

Which of the following is not a key ingredient in cloud formation?
particles. drizzle. water vaper. drop in air pressure

Answers

Answer:Drizzle

Explanation:

Clouds require water vapor, particles the vapor can condense around, and a drop in air pressure to form.

Cloud formation is a process that begins with a drop in air pressure. An ingredient that is not key in the formation of clouds is;

A. Drizzle

Drizzle is not an important factor in the formation of clouds. Clouds are formed when water and ice are suspended in the air.

The process of cloud formation begins when the terrain is heated up by the sun.

Wind blows more around the areas of low pressure thus causing the rising of warm air which holds up water.

After some time, this air becomes condensed and falls down as rain.

Summarily, Drizzling is not an important part of cloud formation.

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Can someone help me please?

Answers

The answer is 2 I think I’m not sure

What r the 4 seasonal stages of the year ?

Answers

Answer:

Spring, Summer, Winter, and Fall

Explanation:

Please mark me brainliest]

Answer:

Spring, Summer, Autumn (Fall) and Winter.

Explanation:

Who wants brainliest? Answer those 2 questions

Answers

Answer:

This type of natural selection occurs when there are selective pressures working against two extremes of a trait and therefore the intermediate or “middle” trait is selected for. If we look at a distribution of traits in the population, it is noticeable that a standard distribution is followed: Example:  For a plant, the plants that are very tall are exposed to more wind and are at risk of being blown over. The plants that are very short fail to get enough sunlight to prosper. Therefore, the plants that are a middle height between the two get both enough sunlight and protection from the wind.

This type of natural selection occurs when selective pressures are working in favour of one extreme of a trait. Therefore when looking at a distribution of traits in a population, a graph tends to lean more to one side: Example: Giraffes with the longest necks are able to reach more leaves to each. Selective pressures will work in the advantage of the longer neck giraffes and therefore the distribution of the trait within the population will shift towards the longer neck trait.

This type of natural selection occurs when selective pressures are working in favour of the two extremes and against the intermediate trait. This type of selection is not as common. When looking at a trait distribution, there are two higher peaks on both ends with a minimum in the middle as such: Example: An area that has black, white and grey bunnies contains both black and white rocks. Both the traits for white and black will be favored by natural selection since they both prove useful for camouflage. The intermediate trait of grey does not prove as useful and therefore selective pressures act against the trait.

Genes help to define who an individual is inside and out. In addition to visible traits like weight and eye color, psychological qualities such as personality traits, intelligence, risk of mental illness, and more have been linked to genetics.

Explanation:

This is what I could find.

1: overproduction, genetic variation, struggle to survive, and successful reproduction are 4 steps.

2: gene is a unit of heredity which is transferred from a parent to there kids(offspring). They relate to traits in people because if you’re born tall you got it from your mom/dad or their family traits.

Consumers, or heterotrophs, take in food made by other organisms. Then they break apart the food to release its energy. How do these actions of consumers contribute to the carbon cycle?
A. Eating and breaking apart food converts carbon to other elements.
B. Eating and breaking apart food converts other elements into carbon.
C. Eating food involves taking up carbon dioxide.
D. Eating and breaking apart food releases carbon dioxide as a byproduct.

Answers

Answer:

d ? maybe , i just guessed tbh .

Answer: ya it’s D)

Explanation:

How do we determine climate change (amount of time, trends, etc)?

Answers

Answer:

xlimate change is when the climate change due to green house effect

So, climate describes the long term pattern of weather conditions that occurs in a locality. Thermometers and rain gauges are used to collect weather data. These days temperatures are also taken by satellites to reduce the possibility of false high readings due to heat in cities. We can't take Earth's temperature directly, but we do have a lot of information from weather stations, ocean buoys and remote sensing instruments. The information lets us see changes in climate.
An ice core.
Each layer in an ice core tells scientists something about Earth's past.

Which statement best summarizes the complete rock cycle?


1.Sedimentary rocks are weathered to form igneous rocks. Igneous rocks are melted and cooled to form metamorphic rocks.


2.Metamorphic rocks melt to form igneous rocks. Igneous rocks can be weathered to form sedimentary rocks.


3.Sedimentary rocks are the only rocks that are weathered. Igneous rocks can change to sedimentary rocks.metamorphic rocks by heat and pressure. All rocks can be melted and cooled to form igneous rocks.


4.All rocks can change into all other rocks. When rock is melted and cooled, it forms an igneous rock. When rock is under extreme heat and pressure, a metamorphic rock forms. When rock goes through stratification, a sedimentary rock is formed.

Answers

Answer:

3.Sedimentary rocks are the only rocks that are weathered. Igneous rocks can change to sedimentary rocks.metamorphic rocks by heat and pressure. All rocks can be melted and cooled to form igneous rocks.

Explanation:

Sedimentary rocks as the name implies are made up of rock sediments which are formed by weathering processes.

Igneous rocks are the rocks which gives rise to sedimentary rocks and metamorphic rocks under certain conditions such as heat and pressure.

All the type of rocks can also be melted and cooled to form back to igneous rocks.

Other Questions
(T/F) Delayed onset muscle soreness is a normal, non-serious occurrence that is considered a detrimentof physical activity Why do scientists use the International System of Units (SI)? A. because the SI is based on the metric system B. because the tools scientists use only measure in SI units C. so they can communicate their results without confusion D. so all scientists are guaranteed to come up with the same measurements 16,1,0,1,16 input x and output y -2,-1,0,1,2 What is the equation of the line that passes through the points (2,4) and (0,3)? Please, write the sentences replacing the direct object noun with a direct object pronoun.Write the answers twice, one affirmative and one negative.(pls answer all or just a few) :)) I know 5his is easy for yall but for me is not I need some help please I'm giving brainlist. right now humans are making more co2 faster than _______ can absorb it. Small insects can walk across the surface of calm water.Their feet push the surface of the water down slightly,somewhat like a person walking across a trampoline, butthey do not break the surface. What is the bestexplanation for why this happens?A. The insects are light enough so that they do not break the hydrogen bonds holding the water moleculesB. The insects actually use their wings to hover slightly above the waters surface and they only skim it with their feetC. The insects feet are non- polar so they are repelled by the polar water molecules and are pushed away from the waters surface D. The insects are small enough to see the individual water molecules so they are able to step carefully from one molecule to the next Identify the type of chemical reaction.H2CO3H2O + CO2reversibledecompositionsynthesisexchange What is meant by the term total internal reflection? What two conditions must be met for total internal reflection to occur? The initial pressure of a mixture of C6H6 and an excess of H2 in a rigid vessel is 1.21 atm. A catalyst is introduced. After the reaction reaches completion, the temperature is restored to its initial value. The final pressure in the vessel is 0.839 atm. What was the mole fraction of C6H6 in the original mixture what is the average rate of change for the line graphed in the figure above Solve for x and y. (please help asap) Write a C program to prform simple C aritlimetic calculations. The user is to enter a simple expression(integer operaior integer) such as 15+30=45. The program is to exlract the 2 operands and the operator, perform the indicated calculation and display the result. For examole15 + 30 = 45. Operators should includc t, -, * , l, and %'.Operands are prcsitive integers, no sign. Use getchar to input the cxpression. Allow for variable spacing before the first operand and between operators and operands. How does the movement of water, carbon, and nitrogen in ecosystems differ from the movement of energy?Please help me this is due today, thank you if you do^^ Which statement accurately describes Hinduism? It is the largest religion in the world. It is one of the oldest religions in the world. It is the youngest major religion in the world. It is one of the smallest religions in the world. If you were Kenny Watson, how would you feel about your brother Byrons behavior? AT LEAST 6 sentencesWILL RECIEVE BRAINLIST AND EXTRA POINTS match the letter with the layer A fishing boat with two people on it runs out of gas while out in a bay. The people set off an emergency flare from a height of 2 meters above the water. The flare has an initial vertical velocity og 30 meters per second. How long does it take the flare to reach its maximum height? What is that height? was is a dream common lit answers