Atoms and Ions

Front

How many protons are in a neutral aluminum atom?

Back

13 protons.

Front

How many protons does lithium have?

Back

3 protons.

Front

How many electrons are in a neutral lithium atom?

Back

3 electrons.

Front

What charge does an atom have when it GAINS electrons?

Back

Negative charge.

Front

How many electrons are in an oxygen ion (O^-2)?

Back

10 electrons.

Front

What is an atom?

Back

The smallest unit of an element, consisting of protons, neutrons, and electrons.

Front

What is an ion?

Back

An atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the charge of a cation?

Back

Positive charge.

Front

What is the charge of an anion?

Back

Negative charge.

Front

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

Back

Subtract the atomic number from the atomic mass.