Atomic Structure Basics Mini-Assessment

Front

What particle makes up the atomic number of an element?

Back

Protons

Front

What is the atomic number of an atom with 3 protons?

Back

3

Front

If an atom contains exactly three protons, then it's an atom of _____

Back

Lithium

Front

What charge is an electron?

Back

Negative

Front

What is the atomic number of the atom with 9 protons?

Back

9

Front

Define atomic number.

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of a neutron?

Back

Neutral

Front

How do you determine the number of neutrons in an atom?

Back

Subtract the atomic number from the atomic mass.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

They are equal in number.