Oxygen (O)
Atomic Data for Oxygen (O)
Atomic Number = 8
Atomic Weight = 15.9994
Reference
E95
Isotope
Mass
Abundance
Spin
Mag Moment
16
O
15.994915
99.76%
0
17
O
16.999311
0.048%
5/2
-1.89379
18
O
17.999160
0.20%
0
O I Ground State 1
s
2
2
s
2
2
p
4
3
P
2
Ionization energy 109837.02 cm
-1
(13.61805 eV) Ref.
MG93
O II Ground State 1
s
2
2
s
2
2
p
3
4
S°
3
/
2
Ionization energy 283270.9 cm
-1
(35.1211 eV) Ref.
MKM93