2nd Nine Weeks Exam (S1)

Front

Where are electrons likely to be found as they travel around the nucleus?

Back

Electron Cloud

Front

What is the central region of an atom where its neutrons and protons are located?

Back

Nucleus

Front

What is the mass number of an atom?

Back

The mass number is the sum of the number of protons and neutrons in the nucleus of an atom.

Front

Identify the compound: N, Cl, O, H2O

Back

H2O

Front

Which particle has a positive electrical charge?

Back

Proton

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom.

Front

What are electrons?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom.

Front

What is the charge of a neutron?

Back

Neutrons have no charge (neutral).