What happens to the atomic radius as you move down a group in the periodic table?

• It decreases due to fewer electron shells.

• It remains constant as the number of protons increases.

• It increases due to the addition of electron shells.

• It fluctuates depending on the element.

Why does ionisation energy decrease as you move down a group?

• Because the outer electrons are closer to the nucleus.

• Because the outer electrons are further from the nucleus.

• Because the number of protons decreases.

• Because the atomic mass decreases.

What is the trend of electron affinity as you move down a group?

• It increases due to stronger proton-electron attraction.

• It increases and then decreases.

• It decreases due to weaker proton-electron attraction.

• It remains unchanged.

How does electronegativity change as you move down a group?

• It remains constant.

• It decreases because atoms become larger.

• It increases because atoms become smaller.

• It increases and then decreases.

Why are atoms with a full outer shell considered stable?

• Because they have a high tendency to react.

• Because they do not need to lose or gain electrons.

• Because they have fewer protons.

• Because they have a lower atomic mass.