Chemical Compounds and Atoms

The basic particles from which all elements are made; the smallest particle of an element that has the properties of that element.

• matter

• atom

• chemistry

• mixture

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

The force of attraction that holds two atoms together

• chemical property

• physical property

• chemical bond

• chemical formula

Tags

NGSS.HS-PS1-3

Symbols that show the elements in a compound and the ratio of atoms.

• chemical formula

• chemical bond

• atoms

• substance

Tags

NGSS.MS-PS1-1

A substance made of two or more elements chemically combined in a specific ratio, or proportion.

• molecule

• substance

• mixture

• compound

Two or more substances that are together in the same place but their atoms are not chemically bonded.

• molecule

• compound

• mixture

• substance

A neutral group of two or more atoms that are held together by covalent bonds.

• substance

• molecule

• atom

• mixture

Tags

NGSS.MS-PS1-1

A substance that cannot be broken down into any other substance by chemical or physical means.

• matter

• substance

• atom

• element

The study of the properties of matter and how matter changes.

• 
  matter

• chemistry

• chemical change

• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Anything that has mass and takes up space.

• 
  matter

• water

• substance

• chemical change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

A change that alters the form or appearance of a material but does not change the material into another substance.

• Physical property

• Nuclear reaction
• Phase transition
• Chemical property