PS - Unit 4 Review Chemistry

Front

Which subatomic particles are included in the atomic mass?

Back

Protons and neutrons are included in the atomic mass.

Front

What are isotopes?

Back

Isotopes are variants of the same element that have the same number of protons but different numbers of neutrons.

Front

What is the most fundamental makeup of physical matter?

Back

The most fundamental makeup of physical matter consists of up quarks, down quarks, and electrons.

Front

What combination of quarks makes up a neutron?

Back

A neutron is made up of two down quarks and one up quark.

Front

What are ions?

Back

Ions are atoms that have a positive or negative charge due to the loss or gain of electrons.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of a neutron?

Back

A neutron has no charge (neutral).

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

How do you determine the atomic number of an element?

Back

The atomic number of an element is determined by the number of protons in its nucleus.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.