Chemistry Review #1

Front

What is the center of the atom called?

Back

Nucleus

Front

Which subatomic particle gives an atom a positive charge?

Back

Proton

Front

Who is known as the father of chemistry?

Back

John Dalton

Front

Which region of an atom has a negative charge?

Back

The electron cloud

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What charge do neutrons carry?

Back

Neutrons have no charge (neutral).

Front

What is the mass of a proton compared to an electron?

Back

A proton is approximately 1836 times more massive than an electron.

Front

What is an atom?

Back

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

Front

What is the role of electrons in an atom?

Back

Electrons are involved in chemical bonding and determine the atom's reactivity.