Periodic Table Trends

Front

Horizontal row in the periodic table:

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period

Front

A vertical column is called...

Back

group

Front

Bottom number on periodic table squares is the ...

Back

atomic mass

Front

Top number on periodic table squares is the ...

Back

atomic number

Front

Subatomic particle in the nucleus, same mass as a proton, no charge.

Back

neutron

Front

Positively charged subatomic particle in an atom's nucleus

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proton

Front

Negatively charged subatomic particle orbiting an atom's nucleus

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electron

Front

Energy to remove an electron from an atom

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Ionization Energy

Front

Atom's tendency to attract shared electrons

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Electronegativity

Front

Atomic numbers trend left to right on the periodic table:

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Increase