Ionization energy-AP

a

b

c

d

a

b

c

d

Na

Mg

Al

Si

How well an atom attracts electrons in a chemical bond

The relative size of an atom

An atom that has gained or lost an electron

The amount of energy it takes to remove an electron from the valence shell of an atom

Mg

Cl

S

Ca

Na

The ionization energy drops significantly as you move down a group because the valence electrons are in a shell further from the nucleus.

The ionization energy increases gradually as you move right across a period because the valence electrons are in a shell further from the nucleus.

The ionization energy increases gradually as you move right across a period because you are adding more protons.

The ionization energy increases when the valence electrons are more attracted to the nucleus.