Atom, Element, Compound, Molecule

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.

Tags

NGSS.MS-PS1-1

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means, made up of only one type of atom.

Front

What is a compound?

Back

A substance formed when two or more different elements chemically bond together, resulting in new properties.

Tags

NGSS.MS-PS1-1

Front

What is a molecule?

Back

A group of two or more atoms bonded together, which can be of the same or different elements.

Tags

NGSS.MS-PS1-1

Front

Where is most of the mass of an atom found?

Back

In the nucleus, where protons and neutrons are located.

Front

What happens when compounds form?

Back

The elements lose their individual chemical properties and take on new properties.

Tags

NGSS.MS-PS1-2

Front

What is the difference between a molecule and a compound?

Back

A molecule can be made of the same or different types of atoms, while a compound is specifically made of different types of atoms.

Tags

NGSS.MS-PS1-1

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded and retain their individual properties.

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Tags

NGSS.MS-PS1-1

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom that contribute to its mass.