Physical Science Periodic Table

Front 1

Atomic Number

Back 1

Tells you the number of protons and the number of electrons

Front 2

C

Back 2

the tAomic Symbol for Carbon

Front 3

Atomic Mass

Back 3

Larger of the two numbers/number of protons and neutrons

Front 4

Isotopes

Back 4

the reason atomic masses all have decimal places

Front 5

Ion

Back 5

Atom that is not electrically neutral.

Front 6

Group (Family)

Back 6

Tells how many valence electrons. (electrons in the atom's outermost shell.)

Front 7

valence electrons

Back 7

Electrons in the outermost energy shell (level) they have the most energy and participate in chemical bonds.

Front 8

Nobel Gases

Back 8

Group 8A stable with a full outer level 8 valence electrons. They do not react with other elements.

Front 9

Halogens

Back 9

Group 7A-highly reactive non-metals 7 valence electrons. Need only one more to fill outer-shell. They will still from a reactive metal to form ionic bond.

Front 10

Alkali Metals

Back 10

Group 1A Highly reactive have 1 valence electron and will freely give it away to become stable.

Front 11

Alkaline Earth Metals

Back 11

Group 2A-somewhat reactive have 2 valence electrons and generally give them up to nonmetals to form ionic bonds.

Front 12

Metals, Nonmetals, Metalloids

Back 12

Classes of elements.

Front 13

Metals

Back 13

good conductors, malleable Ductile, most common type of element

Front 14

Nonmetals

Back 14

Brittle, poor conductors. Top right of the periodic table.

Front 15

metalloids

Back 15

Have properties of both metals and nonmetals. conductivity varies with temperature.