HS-PS1-1 Vocabulary Review

Front

Proton

Back

particle with an electrical charge of 1+

Front

Electron

Back

particle with an electrical charge of 1-

Front

Chemical Property

Back

any characteristic of a substance that indicates whether it can undergo a certain chemical change

Front

Nucleus

Back

small, positively charged center of an atom

Front

Period (in the periodic table)

Back

a horizontal row of elements on the periodic table

Front

Neutron

Back

particle with no charge (neutral) found in the nucleus of an atom

Front

Atomic Number

Back

the number of protons in the nucleus of an atom, which determines the element's identity

Front

Mass Number

Back

the total number of protons and neutrons in an atom's nucleus

Front

Element

Back

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

Front

Compound

Back

a substance formed when two or more elements chemically bond together