Periodic table Cheat Sheet (DRAFT) by anonymous_714

$ Solid.
$ Shiny (metallic luster).
$ Silver.
$ Malleable & ductile --> layers of +ve ions can slide over each other.
$ Good conductor of electr­icity (free moving electr­ons).

AKA Alkali metals.

PHYSICAL PROPERTIES
$ Soft.
$ Low melting point (Decreases down the group).
$ Low density (Increases down the group).
$ All their compounds are soluble in water.

CHEMICAL PROPERTIES
$ Monovalent (one oxidation state).
$ Lose 1 electron & form a +ve ion.
$ Very reactive (Increases down the group).
"­They're preserved in paraffin or Kerose­ne".
$ No catalytic proper­ties.
$ Their compounds are white when solid & colorless when aqueous.
$ React with cold water forming an alkali (soluble metal hydrox­ide).
"2Na + 2H

2

O --> 2NaOH + H

2

."
$ React with Oxygen forming a metal oxide.
"4Li + O

2

--> 2Li

2

O."
$ Their compounds never undergo thermal decomp­osition except group 1 nitrate.
"­2NaNO

3

---> 2NaNO

2

+ O

2

."