Atoms, Elements, & Molecules Test

Front

What are atoms?

Back

Atoms are the basic building blocks of matter, consisting of protons, neutrons, and electrons.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means, and is made up of only one type of atom.

Tags

NGSS.MS-PS1-1

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together by chemical bonds.

Tags

NGSS.MS-PS1-1

Front

What is a compound?

Back

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

Tags

NGSS.MS-PS1-1

Front

What is the difference between a molecule and a compound?

Back

All compounds are molecules, but not all molecules are compounds. A molecule can consist of the same type of atoms.

Tags

NGSS.MS-PS1-1

Front

What do scientists use to represent different elements?

Back

Scientists use symbols, often derived from the element's name, to represent different elements.

Front

What is the significance of chemical bonds in molecules?

Back

Chemical bonds hold atoms together in a molecule, determining its structure and properties.

Tags

NGSS.MS-PS1-1

Front

What is the role of protons in an atom?

Back

Protons are positively charged particles found in the nucleus of an atom and determine the element's identity.

Front

What is the role of neutrons in an atom?

Back

Neutrons are neutral particles found in the nucleus of an atom and contribute to the atom's mass.

Front

What is the role of electrons in an atom?

Back

Electrons are negatively charged particles that orbit the nucleus and are involved in chemical bonding.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2