Subatomic Particles

Front

What are the three main subatomic particles?

Back

Protons, Neutrons, and Electrons.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of a proton?

Back

Positive.

Front

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

Back

Subtract the atomic number from the atomic mass.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the atomic mass of an element?

Back

The weighted average mass of an atom's isotopes.

Front

How many protons are in Gold (Au)?

Back

79.

Front

How many neutrons are in Gold (Au)?

Back

118.

Front

What is the significance of the atomic number in the periodic table?

Back

It determines the element's position and its chemical properties.