Matter Test 23-24

Front

What are the three main subatomic particles of an atom?

Back

Protons, Neutrons, Electrons

Front

Which subatomic particle has a negative charge?

Back

Electrons

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 mass of an element primarily determined by?

Back

The number of protons and neutrons in the nucleus.

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

How do you determine the number of neutrons in an atom?

Back

Subtract the number of protons from the atomic mass.

Front

What is the significance of the atomic number?

Back

It represents the number of protons in an atom and determines the element's identity.