Fandom

Open Science Wiki

Oxygen

181pages on
this wiki
Add New Page
Comments0 Share
Oxygen
Oxygen
Identification
Symbol
O
Block
P-Block
Group
Group 16
Period
Period 2
Atomic Information
Atomic Number
8
Atomic Radius
Unknown pm
Mass
15.9999 Ar
Category
Standard state(298 K)
Electronic Configuration
1s2 2s2 2p4
Electronegativity (Pauling)
Unknown
Unknown
First ionisation energy
Unknown
Physical Properties
Color
Colourless
Melting Point
54.36 K
Boiling Point
90.19 K
Density of solid
Unknown
Unknown
Heat Properties
Enthalpy of fusion
Unknown
Enthalpy of atomisation
Unknown
Enthalpy of vaporisation
Unknown

Oxygen is the 8th element in the periodic element according to its atomic number. It is the second most electronegative element after Fluorine. Its electronegativity is 3.44 according to Pauling Scale. It is also a powerful oxidising agent having formed many oxides with elements readily. Under standard temperature and pressure it exists as dioxygen(O2) which is a colorless, odourless and tasteless gas. Free elemental O2 only began to accumulate in the atmosphere about 2.5 billion years ago during the Great Oxygenation Event, about a billion years after the first appearance of the Obligate anaerobic organisms.

1
H
2
He
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
55
Cs
56
Ba
* 72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
87
Fr
88
Ra
** 104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
113
Uut
114
Fl
115
Uup
116
Lv
117
Uus
118
Uuo


* 57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
** 89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.

Also on Fandom

Random Wiki