Information valid for Pu-244 unless otherwise noted

Plutonium

Basic Information

Symbol: Pu
Atomic Number: 94
Mass: (244.0)
Melting Point: 639.5 C
Boiling Point: 3235.0 C
Number of Protons/Electrons: 94
Number of Neutrons: 150
Classification: Rare Earth
Crystal Structure: Monoclinic
Density @ 293 K: 19.84 g/cm³
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: 24 Sixth Energy Level: 8 Seventh Energy Level: 2

Isotopes

Facts

Date of Discovery: 1940
Discoverer: G.T. Seaborg
Name Origin: After the planet Pluto
Uses: bombs, nuclear reactors
Obtained From: some uranium ores, man-made

Related Links

Note: The external links below are not a part of this site and their content is not the responsibility of this site

1. A Perspective on the Dangers of Plutonium

From the Lawrence Livermore National Laboratory

2. What is Plutonium?

From the Amarillo National Resource Center for Plutonium