Matter Vocab Set 2

Front

Element

Back

Material that cannot be broken down any simpler.

Front

atom

Back

smallest part of an element; has the properties of the element

Front

Periodic table

Back

Shows the 118 known elements arranged by atomic number.

Front

Nucleus

Back

Center of an atom

Front

Proton: small particle in the neutron of an atom; positive charge (+)

Back

Proton

Front

Electron: smaller particles in an atom; negative charge (-); move outside the nucleus.

Back

Electron

Front

Neutron: small particle in an atom; neutral charge (n)

Back

small particle in an atom; has a neutral charge (n)

Front

Atomic number

Back

Number of protons in an atom; determines the element type.

Front

Molecules

Back

Particles with more than one atom joined together.

Front

Compounds:

Back

Chemical combination of 2+ elements.