Trends

Question 1

Definition of atomic radius:

Answer 1

Distance from nucleus to outer shell

Question 2

When u go down a family Does the atomic radius increase or decrease:

Answer 2

It increases because the number of shells increase as you go down

Question 3

Does atomic radius across a period increase or decrease:

Answer 3

Decreases. Even tho the number of shells is the same. There are more protons as u go across a period (more nuclear attraction)

Question 4

Define ionization energy:

Answer 4

Amount of energy to remove valence electrons from a neutral atom

Question 5

Does ionization energy in increase or decrease across a period:

Answer 5

Increase bc There are more protons across a period so it is harder to remove electrons (more nuclear attraction)

Question 6

Does ionization increase or decrease down a family:

Answer 6

Ionization energy decreases bc the shells r further away so electrons r easier to remove (there is less nuclear attraction)

Question 7

Electron affinity:

Answer 7

The amount of energy released when u add an electron to an atom

Question 8

Does electron affinity increase or decrease across a period:

Answer 8

Increase bc There are more protons across a period so it is harder to remove electrons (more nuclear attraction) (search)

Question 9

Does electron affinity increase or decrease across down a row:

Answer 9

Decreases because of low nuclear attraction as u go down a family (more shells mean further away)

Question 10

Shielding affect:

Answer 10

The number of electrons between the outer and the electrons in he nucleus

Question 11

Are positive ions bigger or smaller than neutral:

Answer 11

Smaller bc more attraction pulls electrons in

Question 12

Are negative ions bigger or smaller than neutral:

Answer 12

Negative is bigger than neutral bc less attraction pulling electrons in

Question 13

Which group has the highest electron affinity:

Answer 13

Halogens bc they want the most electrons