what are the 5 chemical properties of oxygen plz plz plz tell me because i did not find on google.?

Question

plz plz plz plz this is for my major assignment!!!!!!!!!

Answer 1

Atomic number
8

Atomic mass
15.999 g.mol -1

Electronegativity according to Pauling
3.5

Density
1.429 kg/m3 at 20°C

Melting point
-219 °C

Boiling point
-183 °C

Vanderwaals radius
0.074 nm

Ionic radius
0.14 nm (-2)

Isotopes
4

Electronic shell
[ He ] 2s 2 2p 4

Energy of first ionisation
1314 kJ.mol -1

Energy of second ionisation
3388 kJ.mol -1

Energy of third ionisation
5300 kJ.mol -1

Discovered by
Joseph Priestly in 1774

Answer 2

just like the first person said, http://en.wikipedia.org/wiki/Oxygen
oxygen is
very reactive
6 valence electrons
8 protons and electrons
diatomic molecule
usually covalently or ionically bonded to other elements.
8 neutrons, and etc.

Answer 3

(1) Oxygen reacts with alkaline metals when heated, producing oxide alkaline metals.
(2) Oxygen reacts with carbon-based materials when heated, producing carbon dioxide and water.
(3) Oxygen reacts with reactive metals when heated, producing oxide reactive metals.
(4) Oxygen reacts with sulfur when heated, producing sulfur dioxide.
(5) Oxygen reacts with ammonia when heated, producing nitrogen monoxide and water.

Answer 4

http://en.wikipedia.org/wiki/Oxygen