Vocabulary

The smallest unit of ordinary matter that forms a chemical element

• Compound

• Molecule

• Atom

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

A negatively charged subatomic particle found outside of the nucleus of the atom

• Proton

• Electron

• Neutron

A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction

• Molecule

• Compound

• Atom

Tags

NGSS.MS-PS1-1

Physical combinations of two or more different substances that retain their own individual properties and are combined physically (mixed together)

• Compound

• Mixture

• Molecule

A positive subatomic particle found in the nucleus of an atom

• Protons

• Neutrons

• Electrons

Pure substances that are composed of two or more types of elements that are chemically combined

• Atom

• Compound

• Mixture

Negatively charged particles found outside the nucleus and are equal to the number of protons.  They are involved in the formation of chemical bonds.

Tags

NGSS.MS-PS2-3

Smallest possible unit into which matter can be divided, while still maintaining its properties

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Groups of two or more atoms held together by chemical bonds

• Atoms

• Molecules

• Elements

• Matter

Tags

NGSS.MS-PS1-1

The basic unit of a chemical element, consisting of a nucleus surrounded by electrons.

• Atom

• Molecule

• Compound

• Mixture