Atoms and the Periodic Table

Front

What does the atomic number represent in an atom?

Back

The atomic number represents the number of protons in an atom.

Front

What is the chemical symbol for Lithium?

Back

Li

Front

What are the smallest units of matter in the universe?

Back

Atoms

Front

How does the Periodic Table arrange elements?

Back

The Periodic Table arranges elements in order of increasing atomic number.

Front

What is the element symbol for Carbon?

Back

C

Front

What are atoms made of?

Back

Atoms are made of protons, neutrons, and electrons.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

What is a neutron's charge?

Back

A neutron has no charge (it is neutral).

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.