Atomic Structure

Front

Which subatomic particle is negatively charged?

Back

Electron

Front

What are the particles in an atom that are neutral and have no charge?

Back

Neutrons

Front

What differs in isotopes of the same element?

Back

# of neutrons

Front

How many neutrons does uranium-239 have?

Back

147

Front

What is the mass number of an element with 18 protons, 18 electrons, and 19 neutrons?

Back

37

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

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.