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Oxygen - Wikipedia

en.wikipedia.org/wiki/Oxygen

Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table and is a highly reactive nonmetal ...

Chemical Elements.com - Oxygen (O)

www.chemicalelements.com/elements/o.html

Name: Oxygen Symbol: O Atomic Number: 8. Atomic Mass: 15.9994 amu. Melting Point: -218.4 °C (54.750008 K, -361.12 °F) Boiling Point: -183.0 °C (90.15 K, ...

Why is oxygen in chemical equations written as O2, when the ...

www.quora.com/Why-is-oxygen-in-chemical-equations-written-as-O2-when-the-element-itself-is-just-O

For instance: alkane+O2→CO2+H2O+energy. Why is it not simply written as ... Oxygen is written as O2 when there are two oxygen atoms in the molecule.

What is Oxygen? - Site Index

www.elementalmatter.info/element-oxygen.htm

Info about the element Oxygen includes the definition, classification, history, discovery, ... The Atomic Number of this element is 8 and the Element Symbol is O.

Isotopes and Nuclear Symbols - Worked Chemistry Problem

chemistry.about.com/od/workedchemistryproblems/a/isotopes-nuclear-symbols-1.htm

This worked problem demonstrates how to write nuclear symbols for isotopes of a given element. Problem Write the nuclear symbols for three isotopes of oxygen ...

Properties of Oxygen - Boundless

www.boundless.com/chemistry/textbooks/boundless-chemistry-textbook/nonmetallic-elements-21/oxygen-153/properties-of-oxygen-591-3611/

An allotrope of oxygen (symbol O 3) having three atoms in the molecule instead of the usual two; it is a blue gas, generated from oxygen by electrical discharge; ...

BBC - GCSE Bitesize: Word and symbol equations

www.bbc.co.uk/schools/gcsebitesize/science/ocr_gateway_pre_2011/carbon_chem/0_fundamental_concepts5.shtml

Copper and oxygen are the reactants, and copper oxide is the product. Symbol equations. Symbol equations give the symbols and molecular formulae of the ...

Oxygen Facts - Air, Gas, Atom, Uses, Properties, Water, Ozone ...

www.sciencekids.co.nz/sciencefacts/chemistry/oxygen.html

Oxygen is an element with the chemical symbol O and atomic number 8. ... Oxygen is essential to human life, it is found in the air we breathe and the water we ...

Oxygen | Define Oxygen at Dictionary.com

www.dictionary.com/browse/oxygen

Oxygen definition, a colorless, odorless, gaseous element constituting about ... Symbol: O; atomic weight: 15.9994; atomic number: 8; density: 1.4290 g/l at 0°C ...

Chemical Symbols and Chemical Reactions

www.ewart.org.uk/science/structures/str15.htm

You will have to learn these, and other, chemical symbols for the terminal GCSE exam. For the other ... What is the chemical symbol for oxygen ? What is the ...

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What is the chemical symbol for the element oxygen? | Reference.com

www.reference.com

The chemical symbol for oxygen is "O." Oxygen is number 8 on the periodic table of the elements, and it is part of the chalcogen...

oxygen

www.monashscientific.com.au

Oxygen is an element and as such is abbreviated by the chemical symbol O; Oxygen as a gas consists of two (2) elemental atoms of oxygen.forming a molecule ...

Oxygen»the essentials [WebElements Periodic Table]

www.webelements.com

While about one fifth of the atmosphere is oxygen gas, the atmosphere of Mars contains only about ... The symbol used by Dalton for oxygen is shown below.