7th Grade PERIODIC TABLE

Front

Where are the Electrons found in the structure of an atom?

Back

In spaces around the nucleus.

Front

Sodium (Na) is found in which period of the Periodic Table?

Back

Period 3.

Front

The Modern Periodic Table of Elements is arranged by what?

Back

Atomic number.

Front

In which direction do Groups run in the Periodic Table?

Back

Up and down.

Front

What are the vertical columns in the Periodic Table called?

Back

Groups.

Front

What is the smallest unit of an element?

Back

Atom.

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 an electron?

Back

Negative.

Front

What is the charge of a proton?

Back

Positive.