Tabla

Electronic ConfigurationHe 2s2 2p4

Melting Point-2.1820x10²°C

Boiling Point-1.8281x10²°C

Density1.149g cm⁻³

Description

A colourless, odourless gaseous element belonging to group 16 of the periodic table. It is the most abundant element present in the earth's crust. It also makes up 20.8% of the Earth's atmosphere. For industrial purposes, it is separated from liquid air by fractional distillation. It is used in high temperature welding, and in breathing. It commonly comes in the form of Oxygen, but is found as Ozone in the upper atmosphere. It was discovered by Priestley in 1774.

Covalent Radius63pm

Double57pm

Triple53pm

Ionisation Energies

Oxidation States-2, 0

Uses

Used in steel making, welding, and supporting life. Naturally occuring ozone (O₃) in the upper atmosphere shields the earth from ultraviolet radiation.

Electron Affinity140.98kJ mol⁻¹

Proton Affinity485.2kJ mol⁻¹

Electronegativity3.44PAULING

Atomic Volume14cm³ mol⁻¹

Van Der Waals Radius152pm

Sources

Obtained primarily from liquid air by fractional distillation. Small amounts are made in the laboratory by electrolysis of water or heating Potassium chlorate (KClO₃) with Manganese dioxide (MnO₂) catalyst.

Discovery

Discovered in 1774 by Joseph Priestly, Carl Wilhelm Scheele in England/Sweden

Name Origin

Greek: oxys and genes, (acid former).

CAS7782-44-7

Crust Abundance4.61x10⁵mg kg⁻¹

Sea Abundance8.57x10⁵mg dm⁻³

Enthalpy of Formation249.23kJ mol⁻¹

Thermal Conductivity0.027W (m ⋅ K)⁻¹

Isotope	Abundance	Half Life
16O	99.74%	-
17O	0.04%	-
18O	0.222%	-

https://reuben.science

https://github.com/reubn/tabla

Using data from mendeleev.

MIT License Copyright (c) 2020 reubn Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. pb2bb3a9eb2b62a1fdf94