oxygen

8. Oxygen O-(15.994 g/mol)

Topic covered :-

Oxygen

Oxygen gas

Oxygen atom

Wikipedia oxygen

Details of oxygen

Latin name:

Oxygenium

English name:

Oxygen

Year discovered:

1774

Discovered by:

Michał Sędziwój

Joseph Priestley

Carl Wilhelm Scheele

Electron shell:

K2 L6 M0 N0 O0 P0 Q0 R0

Electrons:8

Protons:8

Neutrons:8

Image

Image source - Google | Photo by image of elements 

Atomic weight (Relative atomic mass):

15.9994(g/mol)

Density:

0.00142897 (g/cm³) (g/cm³)

Melting point:

-218.79°C   =   -361.82°F   =   54.36K

Boiling point:

-182.96°C   =   -297.33°F   =   90.19K

Phase:

Gas

Valence:

II

Period:

2

Group:

VIA

Block:

p - block

Electron configuration:

[He]2s2 2p4

1s2 2s2 2p4

Oxidation states:

-2,-1,+1,+2

Ion charge:

O2-

The ionisation potential of an atom:

13.56 (eV)

Atomic radius:

48 (pm)

Covalent radius:

66 (pm)

Van der Waals radius:

152 (pm)

Electronegativity:

3.44

Electron affinity:

141 (kJ/mole)

Magnetic type:

Paramagnetism

Volume magnetic susceptibility:

0.00000190772

Mass magnetic susceptibility:

0.000001335

Molar magnetic susceptibility:

4.27184 ⋅ 10-8 (m³/mol)

Crystal structure:

Cubic

Grid parameters:

a=5.403 Å; b=3.429 Å; c=5.086 Å; β=135.53°

Attitude c/a :

----

Debye temperature:

-118.15°C   =   -180.67°F   =   155.0K