Nitrogen

- Nitrogen -

 * It was discoverd by Daniel Ruthford
 * Year discoverd 1722
 * How it gots its name Nitrogen gets its name from a mineral known as "niter" (potassium nitrate), from which it can be prepared . ( Acording to Chemcial Elements )
 * Symbol (N)
 * Atomic number 7
 * Atomic mass 14.00674
 * Protons 10
 * Elements 7
 * Neutrons 7
 * Melting point -209.9 °C (63.250008 K, -345.81998 °F)
 * Boiling point -195.8 °C (77.35 K, -320.44 °F
 * Destiny 293 K: 1.2506 g/cm3
 * Abundance in the Earth’s crust 19%
 * (UseFul) 78% of the air we breath
 * Interesting facts Nitrogen gas makes up about 78% of the atmosphere on Earth & only 3% of the atmosphere on Mars. ( Acording to Chemical Elements )
 * Your body is 3% Nitrogen by weight
 * Nitrogen is colorless & Tasteless
 * [|﻿http://chemicalelements.com/elements/n.html]