Unit Test 11/21 (Subatomic and Properties)

Front

What subatomic particle determines the atomic number of an element?

Back

Proton

Front

Where are protons located in an atom?

Back

Nucleus

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance, such as water freezing.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances, such as burning paper.

Front

What is the primary difference between a physical change and a chemical change?

Back

Chemical changes produce new substances, while physical changes do not.

Front

What does the boiling point of a substance depend on?

Back

The atmospheric pressure.

Front

What are neutrons?

Back

Subatomic particles found in the nucleus of an atom that have no charge.

Front

What are electrons?

Back

Negatively charged subatomic particles that orbit the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

The central part of an atom that contains protons and neutrons.

Front

What is the electron cloud?

Back

The region around the nucleus where electrons are likely to be found.