8th Grade Unit 3 Lessons 2&3 Vocab

Front

Number of protons in an atom's nucleus?

Back

atomic number

Front

Weighted average of naturally occurring isotopes (in u or amu)

Back

average atomic mass

Front

Interaction holding atoms/ions together?

Back

chemical bond

Front

Abbreviation of an element's name (1-3 letters)

Back

chemical symbol

Front

Vertical column of elements in the periodic table sharing chemical properties.

Back

group

Front

Atom or molecule with a net charge from electron loss/gain?

Back

ion

Front

Number of protons and neutrons in an atom's nucleus?

Back

mass number

Front

Element that is shiny and conducts heat/electricity well?

Back

metal

Front

Element with properties of metals & nonmetals?

Back

metalloid

Front

Elements with a full set of electrons, non-reactive, Group 18.

Back

Noble Gases