Unit 2 Review (Bohr Models and Periodic Trends)

Front

What are valence electrons?

Back

The electrons in the outer electron shell.

Front

How many valence electrons does Magnesium have?

Back

2

Front

Why does sodium have a larger atomic radius than phosphorus?

Back

Phosphorus has more protons.

Front

Which element is classified as a metal: Sodium, Phosphorus, or Oxygen?

Back

Sodium.

Front

What type of metal is Beryllium?

Back

Alkaline Earth Metal.

Front

What is the atomic radius?

Back

The distance from the nucleus of an atom to the outermost shell of electrons.

Front

How does the atomic radius change across a period in the periodic table?

Back

It decreases from left to right.

Front

How does the atomic radius change down a group in the periodic table?

Back

It increases as you move down a group.

Front

What is the trend in ionization energy across a period?

Back

Ionization energy generally increases from left to right.

Front

What is the trend in ionization energy down a group?

Back

Ionization energy generally decreases as you move down a group.