the visible spectrum of molecular oxygen

O - Oxygen

Oxygen gas was discovered by Swedish pharmacist, Karl Scheele in 1771. Oxygen is prepared in fundamental chemistry using the same process Scheele, Priestley and Lavoisier (who named the element) employed. Comprising 87 percent of the oceans, one fifth of the atmosphere and six out of ten atoms on the crust, oxygen is the most abundant element on the surface of the earth. many compounds are studied in all of our chemistry classes.

Atomic number - 8 Density g/mL 0 .0001429

Atomic weight u 15 .9994 Melting point K 50 .35

Bonding radius A 0 .73 Boiling point K 90 .18

Atomic radius A 0 .65 Heat of vaporization kJ/mol 3 .4099

Ionization Potential V 13 .618 Heat of fusion kJ/mol 0 .22259

Electronegativity - 3 .44 Specific heat J/gK 0 .92

The oxide is neutral.
Crystal are cubic.

Electron config. : 1s² 2s² 2p⁴

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

H He

Li Be B C N O F Ne

Na Mg Al Si P S Cl Ar

K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr

Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe

Cs Ba La* Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn

Fr Ra Ac** Rf Db Sg Bh Hs Mt 110 111 112 113

Lanthanides* Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu

Actinides ** Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

Isotopes of O: Click mass number for decay process, product for element page.

012
0.40 MeV
p,17.338 MeV
N-11
12.034417 013
8.58 msec
EC,17.765 MeV
N-13
13.024810 014
70.606 sec
EC,5.143 MeV
N-14
14.008595 015
122.24 sec
EC,2.754 MeV
N-15
15.003065 016 99.762%

Stable

15.994914 017 0.038%

Stable

16.999131 018 0.200%

Stable

17.999160

019
26.91 sec
B-,4.821 MeV
F-19
19.003579 020
13.51 sec
B-,3.814 MeV
F-20
20.004076 021
3.42 sec
B-,8.109 MeV
F-21
21.008654 022
2.25 sec
B-,6.490 MeV
F-22
22.009962 023
82 msec
B-/B-n,11.290
F-23/F-22
23.015695 024
61 msec
B-/B-n,11.400
F-24/F-23
24.020397

MASS abund.
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass

Updated by clh on 2/6/98. This is not a publication of Phoenix College.

Atomic number	-	8		Density	g/mL	0	.0001429
Atomic weight	u	15	.9994	Melting point	K	50	.35
Bonding radius	A	0	.73	Boiling point	K	90	.18
Atomic radius	A	0	.65	Heat of vaporization	kJ/mol	3	.4099
Ionization Potential	V	13	.618	Heat of fusion	kJ/mol	0	.22259
Electronegativity	-	3	.44	Specific heat	J/gK	0	.92
The oxide is neutral.				Crystal are cubic.
Electron config. : 1s² 2s² 2p⁴
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012 0.40 MeV p,17.338 MeV N-11 12.034417	013 8.58 msec EC,17.765 MeV N-13 13.024810	014 70.606 sec EC,5.143 MeV N-14 14.008595	015 122.24 sec EC,2.754 MeV N-15 15.003065	016 99.762% Stable 15.994914	017 0.038% Stable 16.999131	018 0.200% Stable 17.999160
019 26.91 sec B-,4.821 MeV F-19 19.003579	020 13.51 sec B-,3.814 MeV F-20 20.004076	021 3.42 sec B-,8.109 MeV F-21 21.008654	022 2.25 sec B-,6.490 MeV F-22 22.009962	023 82 msec B-/B-n,11.290 F-23/F-22 23.015695	024 61 msec B-/B-n,11.400 F-24/F-23 24.020397
MASS abund. Halflife Particle, Energy Decay Product(s) Isotopic Mass