Atoms and the Periodic Table

Front

All matter is made of _________.

Back

atoms

Front

The amount of matter in an object (like weight) is its...

Back

mass

Front

What is the symbol for Krypton?

Back

Kr

Front

A proton has a ___________ charge.

Back

positive

Front

An electron has a _________ charge.

Back

negative

Front

What is the center of an atom called?

Back

nucleus

Front

What particles are found in the nucleus of an atom?

Back

protons and neutrons

Front

What is the charge of a neutron?

Back

neutral

Front

What is the smallest unit of an element?

Back

atom

Front

What do we call the table that organizes all known elements?

Back

the Periodic Table