Chemistry High School

how to draw Bohr Model of Phosphorus?? ​

Answers

Answer 1

Answer:

look at the image below

Explanation:

How To Draw Bohr Model Of Phosphorus??
Answer 2

The Bohr model of phosphorus depicts 15 electrons in different energy levels, with the nucleus at the center.

Two electrons are present in the first energy level, eight electrons are present in the second and five electrons are present in the third. The electron configuration of phosphorus, which is [tex]1s^2 2s^2 2p^6 3s^2 3p^3[/tex], matches this distribution.

The formula [tex]2n^2[/tex], where n is the energy level number, determines the maximum number of electrons in each energy level. Therefore, the first energy level can accommodate only two electrons, the second energy level up to eight, and the third energy level up to eighteen.

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How To Draw Bohr Model Of Phosphorus??

Related Questions

Which of the following particles Are free to drift in metals

Answers

use the formula; u = j/nq to evaluate the drift velocity
(u is the drift velocity of electrons, j is the current density, n is the charge carrier number density, and q is the charge on the charge carrier)

hope this helped!!

- 75.0 gram sample of water at 25.0 degrees Celsius is mixed with a 100. gram sample of water at 60.0 degrees Celsius.
What is the final temperature of the water? (No units necessary in the answer)

Answers

Answer:

45

Explanation:

[tex]m_1[/tex] = First sample mass of water = [tex]75\ \text{g}[/tex]

[tex]\Delta T_1[/tex] = Change in temperature of the first sample of water = [tex]25-T[/tex]

[tex]m_2[/tex] = First sample mass of water = [tex]100\ \text{g}[/tex]

[tex]\Delta T_1[/tex] = Change in temperature of the first sample of water = [tex]T-60[/tex]

[tex]T[/tex] = Final temperature of the mixture

[tex]c[/tex] = Specific heat of water

Heat lost by water will be equal to the heat gained so we get

[tex]m_1c\Delta T_1=m_2c\Delta T_2\\\Rightarrow 75(25-T)=100(T-60)\\\Rightarrow 0.75(25-T)=T-60\\\Rightarrow 18.75-0.75T=T-60\\\Rightarrow 18.75+60=T+0.75T\\\Rightarrow 78.75=1.75T\\\Rightarrow T=\dfrac{78.75}{1.75}\\\Rightarrow T=45\ ^{\circ}\text{C}[/tex]

The final temperature of the water is 45.

which ion has the smallest radius

Answers

Potassium ion with smallest radios (K+)

12. Several isotopes of a certain atom "X" exist. 4.35% of all X atoms have a mass of 39.946 amu.
83.79% have a mass of 41.941 amu, 9.50% have a mass of 42.941 amu, and 2.36% have a mass of
43.939 amu. What is the average atomic mass of atom X?

Answers

Answer: 41.97

Explanation:

Plz help getting timed

Answers

Answer:

I think the first one is Active Transport.

Explanation:

The second one is passive transport

Help Please!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

B

Explanation:

Helppppp please!!!!!!!

Answers

For the first question:

Use the formula: Density = Mass/Volume

Given in the question:

Mass - 1800 mg

Volume - 2 cm3

Calculation

Density = Mass/Volume

= 1800/2

= 900mg/cm3

Therefore, the density is 900mg/cm3.

Astrology is the study of how the positions of the stars and movements of the planets influence the lives and behaviors of people. Astrology dates back to the second millennium BCE. Modern Western astrology is often associated with horoscopes that explain an individual’s personality and predict significant events in his or her life based on the position of stars and planets. There is no evidence to support the validity of astrology or its methods. Is astrology an example of science or pseudoscience? Explain your answer.

Answers

Answer: Astrology is an example of pseudoscience. It is based on beliefs and is not supported by any scientific evidence.

Which of the following is an excited state electron configuration for Iron (Fe)?

a)2-8-18-2
b)2-8-14-2
c)2-8-7-5
d)2-8-10-6

Answers

A because it’s just a

All atoms of the same element:

have the same number of atoms
have the same number of neutrons
have the same number of electrons
have the same number of protons

Answers

Answer:

have the same number of protons

Explanation:

The number of protons in an atom determine what element it is. The number of electrons and neutrons can vary from atom to atom of the element, as long as all the atoms have the same number of protons.

please helpppppppp
helpppppppppppppppppppppppppppp

Answers

Protons are positive

Describe at least 3 pieces of information that may be important for building a homemade thermos

Answers

Answer:

3 things

Explanation:

something to keep it insulated and stay warm, a container, a lid that can open and close.

Black exterior I believe with a white inside do to the way light reflects. Aluminum or styrofoam would work together and plastic

What type of energy is represented by a battery

Answers

Answer:

Electrical Energy

Explanation:

Batteries store chemical energy and change it to electrical energy.

Answer:

Electrical energy

Explanation:

What can you infer on the materials that clings unto the magnets? What made you say so?

Answers

Tiny iron chemicals magnet sticks to an object, the object is either iron or steel.

When you are done looking at slides of blood smears you should _____.
1 wash the slides off in the sink
2 leave the slides for someone else to clean up.
3 dispose according to your teacher’s instructions
4 dump in the trash
pls help

Answers

I am pretty sure it’s 3.

Answer:

Hello!!! Princess Sakura here ^^

Explanation:

The answer is Choice 3. the teacher will give you the most safe instructions according to how dangerous the blood might be.

L avanzar hacia la derecha por el período 5, el tamaño atómico, la energía de ionización y los electrones de valencia: A. disminuye, aumenta y aumentan, respectivamente. B. aumenta, disminuye y disminuye, respectivamente. C. disminuye, disminuye y aumentan, respectivamente. D. disminuye, aumenta y disminuyen, respectivamente.

Answers

Answer:

Al avanzar hacia la derecha por el período 5, el tamaño atómico, la energía de ionización y los electrones de valencia: A. disminuye, aumenta y aumentan, respectivamente.

Explanation:

El radio atómico representa la distancia que existe entre el núcleo y la capa de valencia, es decir la más externa. Por medio del radio atómico es posible determinar el tamaño del átomo.  En un período el tamaño atómico disminuye de izquierda a derecha pues en este sentido aumenta el  número atómico aumentando la carga nuclear mientras que el efecto pantalla y el número de  niveles permanecen constantes. En otras palabras, disminuye de izquierda a derecha debido a la atracción que ejerce el núcleo sobre los electrones de los orbitales más externos, disminuyendo así la distancia núcleo-electrón.

Al avanzar hacia la derecha por el período 5, el tamaño atómico disminuye.

La energía de ionización es la necesaria para remover un electrón a un átomo en estado  gaseoso. Mientras más lejos del núcleo esté el electrón, es más fácil removerlo porque se necesita  menos energía. Al aumentar el número atómico de los elementos de un  mismo período, se incrementa la atracción nuclear sobre el  electrón más externo, ya que disminuye el radio atómico y  aumenta la carga nuclear efectiva sobre él. Entonces en un período, al aumentar el número atómico, la energía de ionización aumenta.

Entonces, al avanzar hacia la derecha por el período 5, la energía de ionización y los electrones de valencia aumenta.

Los electrones de valencia  son los electrones que están en la última capa electrónica (llamados orbitales de valencia) y tienen una alta posibilidad de participar en una reacción química.

En cada período aparecen los elementos cuyo último nivel de su configuración electrónica coincide con el número del período, ordenados por orden creciente de número atómico. Por ejemplo, el período 3 incluye los elementos cuyos electrones más externos están en el nivel 3.

Los electrones de valencia aumentan en número a medida que se avanza en un período.

Entonces, al avanzar hacia la derecha por el período 5, los electrones de valencia aumentan.

What type of heat is used to cook pancakes?

Answer choices :
A. Conduction
B. Convention
C. Radiation

Answers

Answer:

A

Explanation:

Answer:

conduction (A) is the right answer

Please help me answer this chemistry question:

Answers

The answer is either c or d, I’m not sure
C is the correct answer

Look again at the properties of sodium and chlorine. Then look at the properties of the compound sodium chloride. What do you notice?

Answers

There is a difference in the properties bcoz when these two elements combine chemically they have different properties of sodium chloride not properties of the sodium and chlorine individually

An element that is likely to have this property of being semiconducting? Bromine, Sodium, or Tellurium?

Answers

Answer:

EASY

Explanation:

Answer:

Sodium

Explanation:

because it can cause electricity

pls help
What is the chemical formula for the following compound?
Br : ca: (Br:
CaBr2
OCaBr
Ca2Br
O None of the above

Answers

Answer:

CaBr2

Explanation:

There is one calcium atom and 2 Bromine atoms.

Hope this helps!

The base camp is located 5,300 meters above sea level. The hiker observes that the water begins to boil at 82⁰C, much lower than the 100⁰C needed to cook the raw egg. He hopes that just leaving the egg in the boiling water longer will let the egg cook. Will he have hard-boiled eggs for breakfast?

Answers

Answer:

No he will not have hard boiled eggs for breakfast

Explanation:

The temperature required to boil the eggs is about 100⁰C. Unfortunately, at the height of the base camp (5,300 meters), water boils at 82⁰C.

This implies that the egg will not become cooked as at the time when the water begins to boil.

Since the eggs can only become hard boiled at 100⁰C and the temperature at which water boils at 5300 meters is less than that(82⁰C), the eggs can not become hard boiled.

a substance/object that reacts with Sodium is Physical or Chemical??

Answers

Answer:

physical

Explanation:

it is physical because you add another chemical to the sodium

How many joules would be absorbed for the water in Problem 1

Answers

Answer:

5000 cal X 4.184 J/cal =

Explanation:

20,920 jules

A lithium atom contains 3 protons , 4 neutrons and 3 electrons

Answers

Lithium atoms contain 3 protons, 3 electrons, and 4 neutrons, so the statement is Correct
The answer is correct

What is Avogadro’s number?

A. the number of atoms in exactly 14.00 g of carbon-12

B. the number of atoms in a kilogram of any substance

C. the number of atoms, molecules, ions, formula units, or other particles in a mole of a substance

D. the number of atoms, molecules, ions, formula units, or other particles in a gram of a substance

Answers

Answer:

C

Explanation:

2. How much ice will 7 cups of water make?

Answers

Answer:

6.44 cups of ice

Explanation:

The ratio of the densities is simply the density of one divided by the density of the other: The density of ice to water is 0.92. Using the ratio, one can simply multiply the volume of the ice by 0.92, which is the conversion factor for the volume of ice to liquid water.

7 × 0.92 = 6.44

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As you stare out the window after a rainstorm, you notice water drops on the window. Explain why those drops don’t stream down the window

Answers

Water has adhesion properties which make it stick

What happens to particles at a higher temperature?
A)speed up
B)slow down
C)remain constant
D)they double in size

Answers

Answer:

A.) Speed up

Explanation:

Heat is directly proportional to kinetic energy which happens when the particles are moving very quickly. This means that more speed = more heat.

Answer:

A

Explanation:

With an increase in temperature, the particles move faster as they gain kinetic energy, resulting in increased collision rates and an increased rate of diffusion. ... With an increase in temperature, the particles gain kinetic energy and vibrate faster and more strongly.

1 pt
Question 5
Aurora records the following observations: It rained on Monday. It was sunny on
Tuesday. It rained again on Wednesday: What is Aurora recording?

A) weather
B) neither weather or climate
C) both weather and climate
D) climate

Answers

Answer: D. Climate

Explanat

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