Atomic Number 20 (+ facts: Sources, Uses, Color and more...) 2022

All atoms have an atomic number. But what is the chemical element that has 20 as atomic number?

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

Alright now to the facts!

Calcium Overview

Atomic Number

20

Learn more about the atomic number.

Description

Fairly hard, silvery-white metal. Fifth most abundant element in the earth's crust (41,500 ppm). Occurs only in compounds.

Atomic Symbol

Ca (Calcium)

Discovery

Discovered By: Sir Humphrey Davy

Year: 1808

Location: England

State at 20 °C

Solid

Sources

Obtained from minerals like chalk, limestone & marble. Pure metal is produced by replacing the calcium in lime (calcium carbonate, CaCO3) with aluminium in hot, low pressure retorts.

Uses

Used by many forms of life to make shells and bones. Virtually no use for the pure metal, however two of its compounds are, lime (CaO) and gypsum (CaSO4), are in great demand by a number of industries.

Atomic Mass

40,078

Learn more about the atomic mass.

Name Origin

Latin: calx, calcis (lime).

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 Calcium-(20) 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).
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