Element+Calcium

ELEMENT CALCIUM-David H

Definition of the element Calcium

The element Calcium is metal. A hard metallic element that constitutes 3.5% of earth's crust. Calcium's basic components are plants and animals. Calcium's compound are usually to make plaster, quicklimes, portland cements, metallurgic and electronic materials. Calcium occurs naturally in limestones, gypsum and fluorite. Expert scientists may find them in those living organisms. This element is the fifth most abundant element in the earth's crust. Yes Calcium is a metal, it creates gas and creates stinch. Properties of element Calcium "Ca" is the scientific symbol for calcium, which it will be easier for researchers to memorize the element. The color of Calcium is silver. Calciums atomic number is 20. Same with calcium's number of proton, electrons in calcium, and the number of neutrons in calcium, they are all 20. The atomic mass of the element is 40.087 amu. It's melting point is from 839.0 degrees C to 1112.15 degrees K. It's boiling point is from 1484.0 degrees C to 1757.15 degrees K. The crystal structure of Calcium is a form or shape of a cubic. Calcium's density of 293 degrees K is 1.53g/cm3 (cm cubic). Calcium might be dangerous for people and animals because the stench of the gas isn't good for the brain, lungs, and vessels.

Element Calcium discoverer

Sir Humphrey Davy is the person who founded Calcium in the year 1808. He was born in the year 1778 in Penzance. Sir Davy is a son of a woodcarver. He experimented gas in the year 1797 in his Medical Pneumatic Institution in Bristol. Thomas Beddoes was his assistant. The following year he discovered that the alkalis and alkaline earths are compound substances formed by oxygen united with metallic bases. Then he also discovers a lot of elements especially Calcium. He was Britain's science researcher. He improved a lot of industries and companies. He died in the year 1829.

What is Calcium used for?

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 - Calcium has a strong oxygen and sulphur that utilized as a cleanser for nonferrous alloys.  - It is used as a alloying agent for aluminium, beryllium, copper, lead and magnesium alloys. -Essential for portland cements Interesting Facts: -Calcium has a lot of benefits for Companies and industries -Calcium is founded in 1808 by Sir Davy Humphrey! -Calcium reacts quite rapid on water experiments   ======

Video from youtube about the Element Calcium:

Direct link: http://www.youtube.com/watch?v=GSfZenQXc6I

Bibliography:

John Simkin "Sir Humphry Davy" 21/04/10 http://www.spartacus.schoolnet.co.uk/SCdavy.htm

"The Element Calcium" 21/04/10 http://www.periodic-table.org.uk/element-calcium.htm

picture: https://cornellchem.wikispaces.com/file/view/Electron_shell_020_calcium.png/47421581/Electron_shell_020_calcium.png