Warm Up: Review on S8P1E & A

Front

What is the name of the element with the atomic number 18?

Back

Argon

Front

What subatomic particle has a positive charge?

Back

Proton

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout.

Front

What subatomic particle has a negative charge?

Back

Electron

Front

What is a mixture of elements and compounds?

Back

A combination of different elements and compounds that are not chemically bonded.

Front

What is the atomic structure of an atom?

Back

An atom consists of protons, neutrons, and electrons.

Front

What is the charge of a neutron?

Back

Neutrons have no charge (neutral).

Front

What is the difference between a pure substance and a mixture?

Back

A pure substance has a uniform and definite composition, while a mixture contains two or more substances that retain their individual properties.

Front

What is the role of electrons in an atom?

Back

Electrons are involved in chemical bonding and reactions.

Front

What is the definition of a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.