Pt | Oxygen

Basic Information

Name

Oxygen

Atomic Number

Gas Phase

Diatomic

Allotropes

Dioxygen, Ozone, Tetraoxygen

Refractive Index

1.000271

Phase At STP

Gas

Spectrum Image

Source

Wikipedia

Bohr Model

Static

Interactive

Descriptive Numbers

CAS Number

7782-44-7

CID Number

CID977

DOT Number

1073

RTECS Number

RTECSRS2060000

Mendeleev Number

Pettifor Number

101

Space Group Number

Glawe Number

Mass

Atomic Mass

15.999 Da

Periodic Position

X Position

Y Position

Period

Group

Classification

Block

Abundance

Urban Soil

490 mg/kg

Seawater

0.86 kg/L

Sun

24 mole ratio to silicon

Earth Crust

0.46 g

Human Body

61 %

Solar System

24 mole ratio to silicon

Meteorites

40 %

Color

Jmol

#FF0D0D

Molcas Gv

#FF0D0D

CPK

#F00000

Atomic Radius

Empirical

Calculated

Van Der Waals

152

Bonding

152

Room Temperature

158

Batsanov

155

Rahm

171

Dreiding

340.46

Uff

350

Mm3

182

Alvarez

150

Bragg

Covalent (Single Bound)

Covalent (Triple Bound)

Covalent (Cordero)

Covalent (Pyykko)

Covalent (Pyykko Double)

Covalent (Pyykko Triple)

Temperature

Melting/Freeze (USE)

54.36 °K

Melting/Freeze (WEL)

54.8 °K

Melting/Freeze (CRC)

54.21 °K

Melting/Freeze (LNG)

54.6 °K

Boiling/Density (USE)

90.188 °K

Boiling/Density (WEL)

90.2 °K

Boiling/Density (CRC)

90.038 °K

Boiling/Density (LNG)

90.04 °K

Boiling/Density (Zhang)

90 °K

Critical Temperature

154.59 °K

Critical Pressure

5.043 MPa

Density

STP

1.429 kg/cm³

Gas

1.429 kg/cm³

Heat

Molar Volume

22,413.40 cm³/mol

Atomic Volume

14 cm³

Heat Of Fusion CRC

0.44 kJ/mol

Heat Of Fusion LNG

0.444 kJ/mol

Evaporation CRC

6.82 kJ/mol

Evaporation LNG

6.82 kJ/mol

Evaporation Zhang

6.82 kJ/mol

Heat Capacity CRC

29.378 J/gK

Heat Capacity LNG

29.4 J/gK

Heat Capacity WEL

29.4 J/gK

Thermal Conductivity

0.027 W/m*K

Adiabatic Index

42862

Speed of Sound

Fluid

330 m/s

Magnetic Properties

Order

paramanyetic

Susceptibility

0.0000013 m3/kg

Etymology

Description

It is a colorless, odorless and gaseous element in the 16th group of the periodic table. In addition to being the most abundant element in the earth's crust, it also makes up 20.8% of the atmosphere. When used for industrial purposes, it is separated from liquid air by fractional distillation. It is used in high temperature welding and breathing. In its common form, it is in the form of oxygen, but it is found as ozone in the upper atmosphere. It was discovered by Priestley in 1774.

Language Of Origin

Greek via French

Origin Of Word

It comes from the combination of the Greek word oxy-, meaning both 'sharp' and 'acid', and the suffix -gen. It means "acid-making".

Meaning

make acid

Etymological Description

It comes from the Greek expression oxy geinomai, meaning "I make acid", as it is believed to be the basic building block of acids. The phrase later evolved into the French oxygène, which is the source of the English phrase "oxygen" today.

Discovery & Isolation

Observed/Predicted By

W. Scheele

Observed/Discovery Year

1771

Discovery Location

Isolated Sample By

M. Sendivogius (Michał Sędziwój)

Isolated Sample Year

1604

Named By

Antoine Lavoisier

Production & Use

Sources

It is mainly obtained by fractional distillation from liquid air. The amount of traces is determined by electrolysis of water in a laboratory environment or by heating potassium chlorate (KClO3) with manganese dioxide (MnO2).

Uses

It is used in steelmaking, welding and life support. Ozone (O3), naturally occurring in the upper atmosphere, protects the earth from ultraviolet radiation.

Radioactivity

Half Life

Stable

Lifetime

Stable

Electron Affinity

Proton Affinity

485.2

Electron Affinity (eV)

1.4611135

Electron Affinity (kJ/mol)

140.976

Electron Affinity (pauling)

3.44

Electron Affinity (allen)

21.36

Electron Affinity (ghosh)

0.304575

Dipole Polarity

Accepted

5.3

Uncertainty

0.2

C6 GB

16.7

C6 Coefficient

15.6

Lattice

Constant Internal Default Radius

6.83

Constant

540.3, 342.9, 508.6

Strucutre

CUB

Angles

π/2, 2.313085, π/2

Electron & Quantum

Oxidation States

−2,−1,0,1,2

Electron Configuration

1s2 2s2 2p4

Quantum Number

a burden

Electron Configuration Semantic

[He] 2s2 2p4

Shells-0

Shells-1

Ionization Energies-0

1313.9

Ionization Energies-1

3388.3

Ionization Energies-2

5300.5

Ionization Energies-3

7469.2

Ionization Energies-4

10989.5

Ionization Energies-5

13326.5

Ionization Energies-6

71330

Ionization Energies-7

84078

List of Compounds

1-10 of 94 compounds

Rows per page:

Formula	Names
^18O2	oxygen-18 O2
O2	liquid oxygen liquefied oxygen oxygen dioxygen Freon 732 molecular oxygen oxygen gas R-732
O3	ozone triatomic oxygen trioxygen
AgO	silver(II) oxide disilver oxide divasil silver oxide silver oxide ketosilver oxosilver
Al2O3	aluminum oxide alumina keto-ketoalumanyloxy-alumane oxo-oxoalumanyloxyalumane
AmO2	americium(IV) oxide
Am2O3	americium(III) oxide
As2O3	arsenic trioxide arsenic(III) oxide
As2O5	arsenic pentoxide arsenic acid anhydride arsenic anhydride arsenic(V) oxide diarsenic pentaoxide
Au2O3·xH2O	gold(III) oxide auric oxide gold trioxide keto-(ketoauriooxy)gold oxo-(oxoauriooxy)gold sulfurous acid, ammonium gold salt

...

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