- a light, ductile, silver-white, metallic element that burns with a dazzling white light, used in lightweight alloys, flares, fireworks, in the manufacture of flashbulbs, optical mirrors, and precision instruments, and as a zinc substitute in batteries. Symbol: Mg; atomic weight: 24.312; atomic number: 12; specific gravity: 1.74 at 20°C.
Origin of magnesium
Examples from the Web for magnesium
Epsom salt also has magnesium, so it will help you relax and sleep.5 Healthier Ways to Detox (That Aren’t Juice Cleanses)
February 20, 2014
Magnesium sulfate has been around since 1906 and has since been proven to be a superior medication.Beyond ‘Downton Abbey’: Preeclampsia Maternal Deaths Continue Today
Eleni Tsigas, Christine Morton
January 28, 2013
At night we drank a beverage we called “CalMag,” a terrible mixture of calcium, magnesium, vinegar, and water.Scientology’s Sea Org: A Story of Escape for Katie Holmes and Suri Cruise
July 6, 2012
She tells us what happens when the balance is ripped apart by the release of calcium and magnesium into the atmosphere.Chris Hedges and Joe Sacco Chronicle Mining Catastrophes in West Virginia
Chris Hedges, Joe Sacco
June 14, 2012
As a teenager, a magnesium flare exploded and left 70 percent of his body covered in third-degree burns.Trust Your Irrationality
July 31, 2010
These alloys are made of a combination of aluminum and magnesium.Flying Machines
W.J. Jackman and Thos. H. Russell
What property of magnesium was taken advantage of in the isolation of argon?
What weight of carnallite is necessary in the preparation of 500 g. of magnesium?
The chloro-bromide may be used for daylight and magnesium ribbon.
It's all foam rubber, nylon braid supports and magnesium tubing.The Dope on Mars
John Michael Sharkey
- a light silvery-white metallic element of the alkaline earth series that burns with an intense white flame, occurring principally in magnesite, dolomite, and carnallite: used in light structural alloys, flashbulbs, flares, and fireworks. Symbol: Mg; atomic no: 12; atomic wt: 24.3050; valency: 2; relative density: 1.738; melting pt: 650°C; boiling pt: 1090°C
Word Origin and History for magnesium
silvery-white metallic element, 1808, coined by English chemist Sir Humphrey Davy (1778-1829) from white magnesia (q.v.), in which it was found, + chemical ending -ium.
- A light metallic element that burns with a brilliant white flame, used in various analgesic, antiseptic, anticonvulsant, and antacid pharmaceuticals. Atomic number 12.
- A lightweight, moderately hard, silvery-white metallic element of the alkaline-earth group that burns with an intense white flame. It is an essential component of chlorophyll and is used in lightweight alloys, flash photography, and fireworks. Atomic number 12; atomic weight 24.305; melting point 649°C; boiling point 1,090°C; specific gravity 1.74 (at 20°C); valence 2. See Periodic Table.