Periodic Table Basics

Front

Who created the first periodic table?

Back

Dmitri Mendeleev

Front

Where are metals located on the periodic table?

Back

Metals are found on the left side of the periodic table.

Front

Where are nonmetals located on the periodic table?

Back

Nonmetals are found on the right side of the periodic table.

Front

What is the atomic number of oxygen?

Back

8

Front

What is the atomic mass of neon?

Back

20.1797

Front

How many electrons can the first energy shell hold?

Back

2 electrons.

Front

How many electrons can the second energy shell hold?

Back

8 electrons.

Front

How many electrons can the third energy shell hold?

Back

18 electrons.

Front

What is the significance of the atomic number?

Back

The atomic number represents the number of protons in an atom's nucleus.

Front

What does the atomic mass represent?

Back

The atomic mass is the weighted average mass of an element's isotopes.