Atomic Structure Flashcard

Front

Which subatomic particles contribute the most to the mass of an atom?

Back

Protons and Neutrons

Front

How many neutrons are in Magnesium?

Back

12

Front

How many protons does this atom have?

Back

5

Front

In order for me to find the number of neutrons, I must round the atomic mass and then do what?

Back

Subtract the atomic number from the atomic mass.

Front

What subatomic particle is electrically neutral (no charge)?

Back

Neutron

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of an electron?

Back

Negative

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 atom?

Back

The total number of protons and neutrons in the nucleus.

Front

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

Back

Atomic mass - Atomic number