Periodic Table Review

Front

What color on the periodic table corresponds with the metalloids?

Back

Bright yellow.

Front

What category is silicon (Si) a part of?

Back

Metalloid.

Front

Which element has the smaller atomic radius: potassium (K) or bromine (Br)?

Back

Bromine (Br) has a smaller atomic radius than potassium (K).

Front

What are the vertical columns in the Periodic Table called?

Back

Groups.

Front

How many valence electrons does a carbon atom have?

Back

4.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What are periods in the periodic table?

Back

Horizontal rows that indicate the number of electron shells.

Front

What is the significance of the periodic table's arrangement?

Back

Elements are arranged by increasing atomic number and similar chemical properties.

Front

What are alkali metals?

Back

Group 1 elements that are highly reactive and have one valence electron.

Front

What are noble gases?

Back

Group 18 elements that are inert and have a full valence shell.