Assessment: Matter and Its Interactions

Front

A small particle that is the building block of matter is a(n)

Back

atom

Front

What is a substance?

Back

A matter with a composition that is always the same.

Front

A molecule is defined as

Back

two or more atoms that are held together by chemical bonds and act as a unit.

Front

Describe the relationship between atoms, elements, and compounds.

Back

An element is composed of just one kind of atom. A compound is composed of more than one element, each of which is a composed of a different type of atom.

Front

All matter consists of particles called ________________.

Back

atoms

Front

Atoms consist of parts called protons, neutrons, and _______________.

Back

electrons

Front

Each electron has a ________________ electrical charge.

Back

negative

Front

Each neutron has an electrically _________________ charge.

Back

neutral

Front

What does the nucleus of an atom contain?

Back

Protons and neutrons

Front

Which part of the atom has a positive charge?

Back

Proton