Atomic Structure Flashcard

Front

What is the formula to find the number of neutrons in an atom?

Back

Number of Neutrons = Atomic Mass - Atomic Number

Front

What subatomic particles are found in the nucleus of an atom?

Back

Protons and Neutrons

Front

How many neutrons are in Magnesium (atomic mass 24, atomic number 12)?

Back

12 neutrons

Front

Which subatomic particle is electrically neutral?

Back

Neutron

Front

What happens to an atom if you add a proton?

Back

It becomes a new element.

Front

What is the charge of a proton?

Back

Positive charge.

Front

What is the charge of an electron?

Back

Negative charge.

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 do you determine the number of protons in an atom?

Back

The number of protons is equal to the atomic number.