7th Grade Matter

Front

What is a single bond?

Back

A single bond is a type of chemical bond where two atoms share one pair of electrons.

Front

What do you call two or more atoms bonded together?

Back

A molecule.

Front

What is the smallest unit of a chemical element?

Back

An atom.

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

Which of the following is not made of matter: air, water, a pencil, or a shadow?

Back

A shadow.

Front

How many atoms are in a molecule of water (H2O)?

Back

3 atoms (2 hydrogen and 1 oxygen).

Front

What is a compound?

Back

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

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms.

Front

What is a double bond?

Back

A double bond is a type of chemical bond where two atoms share two pairs of electrons.

Front

What is a triple bond?

Back

A triple bond is a type of chemical bond where two atoms share three pairs of electrons.