Atoms and the Periodic Table

Front

What do we call the horizontal rows on the periodic table?

Back

Periods

Front

All matter is made of _________.

Back

atoms

Front

All of the following are characteristics of metals EXCEPT-

Back

poor conductor

Front

A proton has a ___________ charge.

Back

positive

Front

An element is identified by

Back

its number of protons

Front

What are the vertical columns on the periodic table called?

Back

Groups

Front

What is the smallest unit of an element?

Back

Atom

Front

What is the charge of a neutron?

Back

Neutral

Front

What is the charge of an electron?

Back

Negative

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.