Periodic Table Review

Front

What number on the element key tells you how many protons an element has?

Back

Atomic number

Front

Which is an alkali metal?

Back

Sodium

Front

How many neutrons does an Oxygen atom have?

Back

8

Front

Which group of METALS is the most reactive?

Back

Group 1- Alkali metals

Front

How do you find the neutrons in an atom?

Back

Atomic mass - atomic number

Front

What is the atomic mass of an element?

Back

The weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What is the charge of a proton?

Back

Positive charge.

Front

What is the charge of an electron?

Back

Negative charge.