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Phys Sci voc 7 2018

Valence Electrons Electrons in the outer shell
Trend A pattern in the Periodic Table
family/group Column on the periodic table, each column of elements has the same number of valence e-, short cut for making Lewis dot/electron dot diagrams
Period Row on the periodic table, shows that elements gain mass as you go across due to more p
Inert Chemically inactive, doesn't react
Reactivity The rate at which a chemical reaction can occur
Ion An atom with a charge, has lost or gained electrons
Cation A positively charged ion
Anion A negatively charged ion
Atomic Theory Current understanding of the atom
Created by: mrsmcdonough