Atomic Structure

Front

How many total electrons does Mg⁺² (a magnesium ion) have?

Back

10

Front

How many total electrons does O^-2 (an oxygen ion) have?

Back

10

Front

In a correctly written symbol, what would be located in the 'A' position?

Back

Mass number

Front

The atomic number identifies the number of __________.

Back

Protons

Front

Subatomic particles that have a negative charge are called __________.

Back

Electrons

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of a neutron?

Back

Neutral

Front

What is the charge of an electron?

Back

Negative

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.