Atomic Structure Flashcard

Front

What does the atomic number of an element represent?

Back

The number of protons in an atom.

Front

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

Back

Neutrons = Mass Number - Atomic Number.

Front

How many neutrons does an atom of Lithium (mass number = 7, atomic number = 3) have?

Back

4.

Front

Which element has an atomic number of 8?

Back

Oxygen.

Front

What is the mass number of an element?

Back

The sum of protons and neutrons in an atom.

Front

What particles are found in the nucleus of an atom?

Back

Protons and neutrons.

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

How do you determine the number of electrons in a neutral atom?

Back

The number of electrons equals the number of protons.