Atomic Number 18 (+ facts: Sources, Uses, Color and more...) 2022

All atoms have an atomic number. But what is the chemical element that has 18 as atomic number?

The answer is Argon and there is so much cool stuff about Argon that people don't know that I would keep reading if I were you.

Alright now to the facts!

Argon Overview

Atomic Number

18

Learn more about the atomic number.

Description

Colorless, odorless, tasteless noble gas. It is the third most abundant element in the earth's atmosphere and makes up about 1%.

Atomic Symbol

Ar (Argon)

Discovery

Discovered By: Sir William Ramsey, Baron Rayleigh

Year: 1894

Location: Scotland

State at 20 °C

Gas

Sources

Continuously released into the air by decay of radioactive potassium-40. Pure form is obtained from fractional distillation of liquid air.

Uses

Used in lighting products. It is often used in filling incandescent light bulbs. Some is mixed with krypton in fluorescent lamps. Crystals in the semiconductor industry are grown in argon atmospheres.

Atomic Mass

39,948

Learn more about the atomic mass.

Name Origin

Greek: argos (inactive).

Want to learn more details and data? Check my Elements Comprehensive List.

Colored Periodic Table

Need an editable periodic table to edit? Maybe add your school logo, work team or anything else to maker your paper look cool?

Along with basic atom / element information (like Argon-(18) atomic number and all the other atomic data), it also comes with color coded info about: State (Gas, Liquid or Solid at room temperature), Groups/series details and much more...

How about an incentive to share this post? (You will help other colleagues find this blog)

Download and enjoy this complete and colored periodic table for you to edit and enjoy. It's in an editable excel format or .ods (open).
[lock][Download excel ##download##]
[Download open .ods format ##download##][/lock]