Unit 2 Periodic Table & Elements

Front 1

Element Box

Back 1

Front 2

Bohr Diagram

Back 2

Protons and neutrons in the center,
Energy on energy levels (shells) in the electron cloud. Up to 2 electrons in the first energy level, up to 8 in the second, up to 8 in the third.

Front 3

Lewis Dot Structure

Back 3

Shows only the valence electrons in the outer shell (energy level). Write the symbol for the element and draw dots to represent the valence electrons. Start on the right and work counter clockwise.

Front 4

Periodic Table

Back 4

An organizational system for elements, places in specific places because of the way they look and act. Rows are left to right, and columns are up and down.

Front 5

Alkali Metals

Back 5

Very reactive metals that do not occur freely in nature. Malleable, ductile, good conductors of heat and electricity. Can explode if they are exposed to water.

Front 6

Alkaline Earth Metals

Back 6

Metals that are very reactive. Not found free in in nature.

Front 7

Transition metals

Back 7

Ductile and malleable, and conduct electricity and heat.

Front 8

Lanthatnides

Back 8

Transition metals found at the bottom of the periodic table. Shiny and reactive. Elements 58-71.

Front 9

Actinides

Back 9

Transition metals found at the bottom of the Periodic Table.
All are radioactive and therefore unstable.

Front 10

Other Metals

Back 10

Ductile and malleable. Solid, have a high density.

Front 11

Metalloids

Back 11

Have properties of both metals and non-metals.. Some of them are semi-conductors (they can carry an electrical charge under certain conditions.

Front 12

Non-metals

Back 12

Not able to conduct electricity or heat very well. Very brittle and do not reflect light.

Front 13

Halogens

Back 13

Means "salt-former" and compounds containing them are called salts

Front 14

Noble Gases

Back 14

Do not form compounds easily. Happy/inert elements (full outer shells)