Argon

Argon

Element Symbol:
 * //Ar, 18//**

Group number and period on the periodic table: Argon is in //**group 8 and period 3**//

Name of person and year it was discovered: It was **//official discovered in 1894//** by **//Lord Rayleigh//** and **//Sir William// //Ramsay.//**

State of the element at room temperature: Argon is a **//Gas at room temperature.//**

The colour of Argon: Argon is not visible unless under special light. Argon is a **//colourless gas//**

The atomic number and mass: Atomic number: 18 Atomic mass: 39.95

The number of Neutrons, Protons and Electrons Neutrons:22 Protons:18 Electrons:18

Is Argon a metal or non-metal: Argon is a non-metal, its a gas.