Ionization Energy Trends

Front

Ionization energy __________ as you go down a group.

Back

decreases

Front

Which element has a lower ionization energy: Lithium, Cesium, or Sodium?

Back

Cesium

Front

Which element has the highest ionization energy: Arsenic, Iron, Zinc, or Cobalt?

Back

Arsenic

Front

Ionization energy __________ as you go across a period.

Back

increases

Front

Explain why ionization energy decreases as you go down a group.

Back

All of the above: Outer electrons are further away from the nucleus, electrons feel less pull from the nucleus, and electrons are easier to remove.

Front

Define ionization energy.

Back

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

Front

What is the trend of ionization energy in relation to atomic number across a period?

Back

Ionization energy generally increases as atomic number increases across a period.

Front

What is the trend of ionization energy in relation to atomic number down a group?

Back

Ionization energy generally decreases as atomic number increases down a group.

Front

Why do noble gases have high ionization energies?

Back

Noble gases have full valence shells, making it difficult to remove an electron.

Front

What is the relationship between atomic radius and ionization energy?

Back

As atomic radius increases, ionization energy decreases.