Definitions for atomic number 9
atomic number 9

Princeton's WordNetRate this definition:0.0 / 0 votes

1. fluorine, F, atomic number 9noun

   a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite

WikipediaRate this definition:0.0 / 0 votes

1. atomic number 9

   Fluorine is a chemical element with the symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as a highly toxic, pale yellow diatomic gas. As the most electronegative reactive element, it is extremely reactive, as it reacts with all other elements except for the light inert gases. Among the elements, fluorine ranks 24th in universal abundance and 13th in terrestrial abundance. Fluorite, the primary mineral source of fluorine which gave the element its name, was first described in 1529; as it was added to metal ores to lower their melting points for smelting, the Latin verb fluo meaning 'flow' gave the mineral its name. Proposed as an element in 1810, fluorine proved difficult and dangerous to separate from its compounds, and several early experimenters died or sustained injuries from their attempts. Only in 1886 did French chemist Henri Moissan isolate elemental fluorine using low-temperature electrolysis, a process still employed for modern production. Industrial production of fluorine gas for uranium enrichment, its largest application, began during the Manhattan Project in World War II. Owing to the expense of refining pure fluorine, most commercial applications use fluorine compounds, with about half of mined fluorite used in steelmaking. The rest of the fluorite is converted into corrosive hydrogen fluoride en route to various organic fluorides, or into cryolite, which plays a key role in aluminium refining. Molecules containing a carbon–fluorine bond often have very high chemical and thermal stability; their major uses are as refrigerants, electrical insulation and cookware, and PTFE (Teflon). Pharmaceuticals such as atorvastatin and fluoxetine contain C−F bonds. The fluoride ion from dissolved fluoride salts inhibits dental cavities, and so finds use in toothpaste and water fluoridation. Global fluorochemical sales amount to more than US$69 billion a year. Fluorocarbon gases are generally greenhouse gases with global-warming potentials 100 to 23,500 times that of carbon dioxide, and SF6 has the highest global warming potential of any known substance. Organofluorine compounds often persist in the environment due to the strength of the carbon–fluorine bond. Fluorine has no known metabolic role in mammals; a few plants and sea sponges synthesize organofluorine poisons (most often monofluoroacetates) that help deter predation.

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1. atomic number 9

   The atomic number 9 refers to the element Fluorine on the Periodic Table. The atomic number of an element denotes the number of protons found in the nucleus of its atoms. In this case, a Fluorine atom contains 9 protons.

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1. • Element
   • Gas

How to pronounce atomic number 9?

1. Alex

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   David

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   Mark

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   Daniel

   British

   Libby

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   Mia

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   Karen

   Australian

   Hayley

   Australian

   Natasha

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   Veena

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   Priya

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   Neerja

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   Zira

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   Oliver

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   Wendy

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   Fred

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   Tessa

   South African

How to say atomic number 9 in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of atomic number 9 in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of atomic number 9 in Pythagorean Numerology is: 8

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=atomic number 9
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Atomic_Number_9
3. ^ ChatGPT
   https://chat.openai.com