Atomic Number 99 (+ facts: Sources, Uses, Color and more...) 2022

All atoms have an atomic number. But what is the chemical element that has 99 as atomic number?

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

Alright now to the facts!

Einsteinium Overview

Atomic Number

99

Learn more about the atomic number.

Description

Synthetic radioactive metal.

Atomic Symbol

Es (Einsteinium)

Discovery

Discovered By: Argonne, Los Alamos, U of Calif

Year: 1952

Location: Made by bombarding uranium with neutrons.

State at 20 °C

solid

Sources

Made by bombarding uranium with neutrons.

Uses

It has no significant commercial applications.

Atomic Mass

252,083

Learn more about the atomic mass.

Name Origin

Named in honor of the scientist Albert Einstein.

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 Einsteinium-(99) 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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