Ionization Energy & Electron Affinity

Front

What is Ionization Energy?

Back

The energy required to remove an electron from an atom in its gaseous state.

Front

What is Electron Affinity?

Back

The energy change that happens when an atom gains an electron.

Front

What is the trend of Ionization Energy across a period?

Back

Ionization energy increases across a period.

Front

What is the trend of Ionization Energy down a group?

Back

Ionization energy decreases down a group.

Front

Which element has a higher Ionization Energy: Na or Mg?

Back

Mg has a higher ionization energy than Na.

Front

What is the relationship between effective nuclear charge and Electron Affinity?

Back

Higher effective nuclear charge typically leads to greater electron affinity.

Front

Which has a greater Electron Affinity: Oxygen or Fluorine?

Back

Fluorine has a greater electron affinity than Oxygen.

Front

Why do nonmetals have higher Electron Affinity than metals?

Back

Nonmetals have a higher effective nuclear charge, so they more readily gain electrons.

Front

What happens to Ionization Energy as you move from left to right across a period?

Back

Ionization energy increases.

Front

What happens to Electron Affinity as you move down a group?

Back

Electron affinity generally decreases.