Periodic Trends - Ionization Energy and Atomic Radius

Front

What is ionization energy?

Back

Energy required to remove one electron from an atom.

Front

How many ionization energies does phosphorus have?

Back

15

Front

What happens to the number of energy levels as you go down a group in the periodic table?

Back

They increase.

Front

The more protons there are, the ____ .

Back

Stronger the pull.

Front

Put the following in order of increasing ionization energy: Strontium, Aluminum, Indium.

Back

Strontium, Indium, Aluminum.

Front

What is the trend of ionization energy across a period?

Back

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

Front

What is the trend of atomic radius down a group?

Back

Atomic radius generally increases as you go down a group.

Front

What is the trend of atomic radius across a period?

Back

Atomic radius generally decreases from left to right across a period.

Front

Define atomic radius.

Back

The distance from the nucleus to the outermost electron shell.

Front

What is the relationship between ionization energy and atomic radius?

Back

As atomic radius decreases, ionization energy increases.