Atoms Vocab

the basic building block of chemistry. It is the smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element.

• matter

• atom

• mass

• element

• proton

Tags

NGSS.MS-PS1-1

material substance that constitutes the observable universe and, together with energy, forms the basis of all objective phenomena. occupies space and possesses rest mass, especially as distinct from energy.

• atom

• proton

• neutron

• matter

Tags

NGSS.MS-PS1-5

a measure of the amount of matter in an object

• matter

• solubility

• mass

• density

a substance that cannot be separated or broken down into simpler substances by chemical means

• element

• volume

• neutron

• mass

a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.

• neutron

• proton

• density

• gas

a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen

• neutron

• proton

• element

• liquid

firm and stable in shape; not liquid or fluid.

• solubility

• gas

• liquid

• solid

Tags

NGSS.MS-PS1-4

a substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape (unlike a solid) and no fixed volume (unlike a liquid).

• liquid

• solid

• volume

• gas

Tags

NGSS.MS-PS1-4

a substance that flows freely but is of constant volume, having a consistency like that of water or oil.

• gas

• solid

• liquid

• volume

Tags

NGSS.MS-PS1-4

the ratio of the mass of a substance to the volume of the substance

• volume

• solubility

• density

• element