Periodic Table Basics Review

Front

What are the vertical columns on the periodic table called?

Back

Groups

Front

What do the vertical columns on the periodic table tell us?

Back

The number of valence electrons (electrons on the outermost shell)

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the atomic mass?

Back

The weighted average mass of an element's isotopes.

Front

Which item on the element square represents the atomic number?

Back

The number of protons, usually found at the top of the square.

Front

What are periods on the periodic table?

Back

Horizontal rows that indicate the number of electron shells.

Front

What do elements in the same group have in common?

Back

They have similar chemical properties and the same number of valence electrons.

Front

What is a metal?

Back

Elements that are typically shiny, good conductors of heat and electricity, and malleable.

Front

What is a nonmetal?

Back

Elements that are usually dull, poor conductors of heat and electricity, and brittle.

Front

What are metalloids?

Back

Elements that have properties of both metals and nonmetals.