How do elements change as you move down a column in a periodic table? a.the atomic radius decreases b.the number of protons decreases c.the atomic mass decreases d.the electronegativity decreases

Answers

Answer 1
Answer:

Answer: Option (d) is the correct answer.

Explanation:

Electronegativity is defined as the ability of an atom to gain electrons in order to become stable.

When we move downwards in a group then there will be increase in size of atom. As a result, atomic radius will also increase.

Also, due to increase in size number of electrons will increase and hence, number of protons will also increase. Therefore, atomic mass will also increase.

Thus, we can conclude that elements change as you move down a column in a periodic table as the electronegativity decreases.

Answer 2
Answer: As you move down a column :
* the atomic number increases
* the number of protims increases
* the atomic mass increases
* the electronegativity decreases

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Answers

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How does the magnetic force exerted by a magnet change as the distance between two magnets increases

Answers

As the distance between two magnets increases, the force between them decreases.

If the force increased along with distance, then the magnet in your hand would reach out
and grab every magnet in Australia or on Mars and pull it toward you.

Calculate the volume of this regular solid.A cylinder labeled B at the top, 13 centimeters high with a radius of 4 centimeters.

Answers

Answer:

hes wrong its (653.45)

Explanation:

cause i got it wrong

An object is dropped from a height of 25 meters. At what velocity will it hit the ground?

Answers

You can use Vf^2-Vi^2 = 2ax

Vf^2 - 0 = 2(9.81)(25)

Or you can use energy

mgh = 1/2mv^2

2gh =v^2

Same thing

What is the term for the ability to cause change in matter?A. Energy
B. Temperature
C. Acceleration
D. Force

Answers

Answer:

A. Energy

Explanation:

You can change energy from one form to another when you lift your arm or take a step. Energy is used to move matter. In this scenario, the matter would be you.

Carlos runs with velocity \vec{v}v →= (5.6 m/s, 29o north of east) for 10 minutes. How far to the north of his starting position does Carlos end up? (Give your answer to the nearest meter)

Answers

Answer:

1629 metres

Explanation:

Given that Carlos runs with velocity v = (5.6 m/s, 29o north of east) for 10 minutes.

To the north, the velocity will be:

V = 5.6 × sin 29

V = 2.715 m/s

Convert the time to second

Time = 10 × 60 = 600

Using the formula below

Velocity = distance/ time

Substitute all the parameters into the formula

2.715 = distance/600

Distance = 2.715 × 600

distance = 1629 m