Periodic Table

Front

Which element is found in group 2 period 7?

Back

Radium (Ra)

Front

How many Protons does Bromine have?

Back

35

Front

Beryllium is in group number______

Back

Group 2

Front

Group 18 elements are called ________________

Back

Noble gases

Front

A horizontal row on the periodic table is called a ______________

Back

Period

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What are the three main types of elements on the periodic table?

Back

Metals, Nonmetals, and Metalloids.

Front

What do elements in the same group have in common?

Back

They have similar chemical properties.

Front

What is the significance of the atomic mass of an element?

Back

It represents the average mass of an element's isotopes.

Front

What are alkali metals?

Back

Elements in group 1 of the periodic table, highly reactive.