Information valid for Es-252 unless otherwise noted

Einsteinium

Basic Information

Symbol: Es
Atomic Number: 99
Mass: (252.0)
Melting Point: Unknown
Boiling Point: Unknown
Number of Protons/Electrons: 99
Number of Neutrons: 153
Classification: Rare Earth
Crystal Structure: Unknown
Density @ 293 K: Unknown
Color: Unknown

Atomic Structure

Number of Energy Levels: 7 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 18 Fourth Energy Level: 32 Fifth Energy Level: 29 Sixth Energy Level: 8 Seventh Energy Level: 2

Isotopes

Facts

Date of Discovery: 1952
Discoverer: Argonne, Los Alamos, University of California
Name Origin: After Albert Einstein
Uses: No uses known
Obtained From: Man-made