Which picture below shows an atom with 4 valence electrons?
A
Be
ОА
ОВ
o o o o
OD
Answers
The picture that shows an atom with 4 valence electrons is that of Beryllium (option B).
What are valence electrons?Valence electrons are any of the electrons in the outermost shell of an atom that is capable of forming bonds with other atoms.
The valence electrons of an atom are found in the outermost shell of the atom's electronic configuration.
According to this question, four images are displayed above. Beryllium is the element that shows that it contains four valence electrons in its electronic configuration.
Therefore, the picture that shows an atom with 4 valence electrons is that of Beryllium.
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Related Questions
two things needed to produce electricity:
1.
2.
Answers
# 1 A supply of electric charges (electrons)
# 2 Pathway for charges to pass through
List 3 facts about HIV/AIDS
Answers
Answer:
Fact: HIV and AIDS are problems in the United States. ...
Fact: HIV is not the same as AIDS. ...
Fact: HIV tests are reliable. ...
Fact: HIV cannot be cured. ...
Fact: There is no vaccine to prevent HIV. ...
Fact: People with HIV should start HIV medicine right away.
Explanation:
hope it help!
how does the cell membrane of a tube worm maintains a stable environment
Answers
Answer:
The cell membrane of a tubeworm is selectively permeable and they prevent minerals in the water from flowing it in the cell of tube worms. By doing this the cell membrane protects the cell from any osmotic damage. By selectively preventing these minerals it maintains the stable environment in the cell
why do people help save the world from hacking hacking helps u code
Answers
Answer:
Yes, It may help code, but when people hack, valuable and private information may be revealed to the hacker which can be very unsafe. Therefore people try to stop it.
Explanation:
This doesnt explain all reasons but this is the one I know.
What compounds are not found in a nonsilicate mineral?
Answers
Answer:
Nonsilicate minerals never contain compounds of silicon bonded to oxygen. Each type of mineral is characterized by a specific geometric arrangement of atoms, or its crystalline structure. crystal a solid whose atoms, ions, or molecules are arranged in a regular, repeating pattern.
Someone help I only need the answers of part a,b,and c!!!!!!
Answers
Earth is made up of 4 main spheres. The geosphere refers to rocks, minerals, and natural landforms that make up earth's surface. What do you think makes up hydrosphere? Why is thr hydrosphere important to life on earth?
Answers
make a poster illustrating the advantages and disadvantages of using geothermal power plant. Explain your work.
Answers
Explanation:
Advantages and Disadvantages of Geothermal Energy: Geothermal Energy is a source of energy that is sustainable and renewable and still majorly untapped. As a resource that is environmentally friendly, it has the potential of meeting the cooling, heating, and electricity demands of the future. There are a number of pros of geothermal energy but on the other hand, some challenges that have to be overcome for fully exploiting this natural resource.
A laboratory cat could be made to twitch its whiskers by direct stimulation of a region within the ________ lobes of its cerebral cortex.
Answers
Answer:
frontal
Explanation:
what are some components that must be present in order for bacteria to grow?
Answers
What bacteria need to grow and multiply
Food (nutrients)
Water (moisture)
Proper temperature.
Time.
Air, no air, minimal air.
Proper acidity (pH)
Salt levels.
what lakes are connected to the Cape Fear river basin??
Answers
Answer:
It is formed at Haywood, near the county line between Lee and Chatham counties, by the confluence of the Deep and Haw rivers just below Jordan Lake. It flows southeast past Lillington, Fayetteville, and Elizabethtown, then receives the Black River approximately 10 miles (16 km) northwest of Wilmington.
Explanation:
Answer and explanation:
Cape Fear River is formed in central North Carolina at the Chatham-Lee County line by the convergence of the Deep and Haw Rivers, flowing southeast and touching parts of Harnett, Cumberland, Bladen, Columbus, Pender, Brunswick, and New Hanover Counties before emptying into the Atlantic Ocean at Cape Fear (part of Bald ...)
Currently, about 35 percent of streams in the Cape Fear basin are impaired, 18 percent are polluted, and 27 percent of estuaries are use-impaired. Those problems are due to reduced water quality caused by the presence of “non-water” contaminants in concentrations higher than are considered safe.
During pinocytosis, the cell takes in liquids
a. True
b. False
Answers
Answer:
ture
Explanation:
A construction company is building a new shopping mall. Following is an excerpt from their letter to the mayor about the new project. Identify the sentence that represents a preventive action to limit mass movement on the construction site. The site of the mall is within the city limits, near the base of a mountain. It is 1. 75 miles from a fracking site. An interstate highway will be carved out of the mountain and will pass over a pond. The excavation will place parts of the mall’s foundation approximately 2 inches below the water table line. A construction company has been called in to divert all excess water flowing into the pond to an unused natural reserve 800 feet away. The construction company is using the most technologically advanced methods.
Answers
Answer:
A construction company has been called in to divert all excess water flowing into the pond to an unused natural reserve 800 feet away.
Explanation:
The sentence clearly shows a preventive action to limit mass movement on the construction site.
Excess water significantly will make the soil saturated and saturated soil is prone to movement. That is, the company's action diverting excess water is definitely a preventive action to limit mass movement in the construction site.
Answer:
See below
Explanation:
someone help me asap lol thanks
Answers
Answer:
It is B. 1-2 seconds because of the dramatic increase in speed shown in the steep curve of the graph
Someone please help!!
Which of the following most accurately explains the greenhouse effect?
Short light waves enter the atmosphere, are reflected, and the waves get longer.
These long waves are trapped by the atmosphere.
Long light waves enter the atmosphere, are reflected by the earth's surface, and
waves shorten. These short waves are trapped by the atmosphere.
Long light waves enter the atmosphere and become trapped.
Incoming solar radiation is trapped in the upper atmosphere and then heats the
layers below
Answers
Answer: To what I understand about Global Climate. I think that *B* is the correct answer. I hope this helped you, if not my apologies!
A necropsy (post-mortem analysis) of a marine sea star that died after it was mistakenly placed in fresh water would likely show that it died because:____.
a. it was so hyperosmotic to the fresh water that it could not osmoregulate.
it was stressed and needed more time to acclimate to the new conditions.
it had an immediate movement of water out of its cells after being placed in fresh water.
its kidneys could not handle the change in ionic content presented by the fresh water.
Answers
Answer:
A - I hope this helps :)
Explanation:
It could not maintain that balance that would be required in the new conditions.
Explain the Meaning
What is an heart
Answers
Your heart is an extremely important organ. It's a muscle that circulates blood throughout your body. Your heart pumps blood into your body, providing it with the oxygen and nutrition it requires to function. Your heart weighs between 300 and 450 g and is about the size of a clenched hand.
What controls the movement of materials between the inside of the cell and the outside world?
Answers
Answer:
cell membrane
Explanation:
That is the job of the cell membrane
Answer:
cell membrane
Explanation:
Glucose
Glycolysis
Pyruvate
Oxygen present
No oxygen
Krebs cycle
Fermentation
2 ATP
Electron
transport chain
30 ATP
Why is lactic acid fermentation less efficient for producing energy than aerobic
cellular respiration is?
Answers
Answer:
because the breaking down of glucose in the body passes through several pathways . Before it can produce energy
Chromosome ____________ refers to the two chromosomes separating and moving to opposite ends of the cell.
Answers
A tissue through which gases are exchanged between the blood and the air in the lungs.
a) stratified squamous epithelium
b) simple squamous epithelium
c) simple culumnar epithelium
d) simple cuboidal epithelium
Answers
Answer:
B- simple squamous epithelium.
Explanation:
Alveoli consists of simple squamous epithelium which is the main site for gas exchange. Thus, the correct option is B.
Gas exchange through the process of pulmonary respiration takes place in the alveoli (singular alveolus) of the lungs.
Alveolus is made up of two types of cells - type I and type II alveolar cells.
Type I alveolar cells are simple squamous epithelial cells supported by a thin elastic basement membrane. These cells form a continuous lining of the alveolar membrane and are the main sites for gas exchange.
Type II alveolar cells are septal cells that are present in between the type I cells. They secrete a fluid to keep the surface between the cells moist and it also contain surfactants for reducing the surface tension and preventing the collapse of alveolus.
Learn more about alveolus in:
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the process in which organisms use chemical energy to make food is called _
Answers
Answer:
Chemosynthesis
Explanation:
What type of rock does not allow water pass through?
Answers
Answer:
impermeable
Explanation:
Answer:
Rocks that will not let water pass through them are called 'impermeable' like mudstone and granite.
What are two ways that a flood can negatively impact an ecosystem?
Answers
Answer:
Floods Cause Sedimentation and Erosion.
Explanation:
Which structure of the oral cavity is composed of skeletal muscle?.
Answers
The tongue is the structure which has skeletal muscle present.
What is Skeletal muscle?They are usually attached to the bone and are responsible for wide range of movements and functions.
The movement is usually voluntary and the tongue which is found in the oral cavity possesses all the features mentioned above thereby making it the most appropriate choice.
Read more about Skeletal muscle here https://brainly.com/question/24655445
Equesion that represents the process of photosynthesis
Answers
Answer:
The photosynthesis equation is as follows: 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2
Explanation:
People with free earlobes don't have any advantages or disadvantages compared to people with attached earlobes. This is an example of a ____________ mutation.
A. beneficial
B. harmful
C. neutral
Answers
Answer:
This is an example of a neutral mutation.
Explanation:
Nothing is wrong with having one or the other; it does not make anyone super human.
I hope I am right. I would not want you with the wrong answer.
Suppose you buy apples from a store. Why would apples you take home with you be redder and
crunchier on average than all the apples at the store?
Answers
Answer:
Apple's are may be fresh. and the apple's in store always denudation of the dark.
Explanation:
WILL GIVE BRAINLIEST!!!!!!
Yeast is a fungus which grows inside humans digestive and reproductive track. When the yeast is in normal limits it helps to keep the bacteria living in humans in balance. A balanced human maintains homeostasis and is healthy.
What is the relationship between yeast and humans?
Answers
Answer:
I would think mutualism.
Explanation:
Because the yeast is provided a place to grow, and the human is benefitted by the yeast helping to keep balance.
What is meaning of "seedling"?
Answers
Answer: A young plant, especially one raised from se-ed and not from a cut-ting.
Explanation: done.