Atoms, Molecules, Elements, Compounds

Front

What is the basic unit of matter?

Back

Atoms are the smallest part of an element and the basic unit of matter.

Front

What is formed when two oxygen atoms combine with a carbon atom?

Back

Carbon dioxide is a compound formed by the chemical combination of two oxygen atoms and one carbon atom.

Front

What is the term for a substance made of two or more different types of atoms chemically bonded together?

Back

A compound is a substance made of two or more different types of atoms chemically bonded together.

Front

What is the smallest part of an element that retains its properties?

Back

An atom is the smallest part of an element that retains its properties.

Front

What are the three main parts of an atom?

Back

The three main parts of an atom are protons, neutrons, and electrons.

Front

Which part of an atom has a positive charge?

Back

Protons are the positively charged particles in an atom.

Front

What is a molecule?

Back

A molecule is formed when two or more atoms bond together.

Front

Are all molecules compounds?

Back

No, not all molecules are compounds; some molecules consist of the same type of atoms.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is the difference between an element and a compound?

Back

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