Atoms and Elements

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What kind of electrical charge does an electron have?

Back

An electron has a negative electrical charge.

Front

Subatomic particles with positive electrical charge are called?

Back

Protons are subatomic particles with a positive electrical charge.

Front

Atoms are the smallest unit of what?

Back

Atoms are the smallest unit of matter.

Front

Where would we find electrons in an atom?

Back

Electrons are found circling around the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are subatomic particles found in the nucleus of an atom that have no electrical charge.

Front

What is the nucleus of an atom?

Back

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

Front

What is the charge of a proton?

Back

Protons have a positive electrical charge.

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.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.