The Atomic Nucleus

Front

What is the strongest of the four fundamental forces of physics that holds nuclei together?

Back

The strong nuclear force.

Front

Which element is very reactive, colorless, odorless, and a gas at room temperature, standing alone above Group 1?

Back

Hydrogen.

Front

What is the atomic number of a hydrogen atom with 1 proton, 1 electron, and 1 neutron?

Back

1.

Front

How do carbon-12 and carbon-14 differ?

Back

They have a different number of neutrons.

Front

What process occurs when a neutron changes into a proton and an electron?

Back

Beta decay.

Front

What is the definition of an atomic nucleus?

Back

The atomic nucleus is the central part of an atom, containing protons and neutrons.

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.