Ionization Energy

Front

What is ionization energy?

Back

The energy required to remove an electron from an atom.

Front

Which element has the lowest ionization energy: Oxygen (O), Boron (B), Carbon (C), or Fluorine (F)?

Back

Boron (B)

Front

Which element has a greater ionization energy: Lead or Silicon?

Back

Silicon

Front

Which element has the greater ionization energy: Magnesium (Mg) or Phosphorus (P)?

Back

Phosphorus (P)

Front

Put the following in order of increasing ionization energy: Neon, Lithium, Carbon.

Back

Lithium, Carbon, Neon

Front

What trend is observed in ionization energy across a period in the periodic table?

Back

Ionization energy generally increases from left to right across a period.

Front

What trend is observed in ionization energy down a group in the periodic table?

Back

Ionization energy generally decreases as you move down a group.

Front

Why does ionization energy increase across a period?

Back

Increased nuclear charge attracts electrons more strongly, making them harder to remove.

Front

Why does ionization energy decrease down a group?

Back

Increased distance from the nucleus and electron shielding reduce the attraction between the nucleus and outer electrons.

Front

What is the relationship between ionization energy and reactivity in metals?

Back

Lower ionization energy typically indicates higher reactivity in metals.