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The Element Nihonium

[Click for Isotope Data]





Atomic Number: 113

Atomic Weight: 286

Melting Point: Unknown

Boiling Point: Unknown

Density: Unknown

Phase at Room Temperature: Expected to be a Solid

Element Classification: Metal

Period Number: 7    Group Number: 13    Group Name: none

Radioactive and Artificially Produced

What's in a name? Named for the country of Japan.

Say what? Nihonium is pronounced as nee-hone-ee-em.

History and Uses:

On July 23, 2004, scientists working at the RIKEN Nishina Center for Accelerator-based Science in Wako, Japan, created the first two atoms of the element nihonium by accelerating zinc ions to 10 percent the speed of light and then impacting them onto a thin bismuth target. Both atoms quickly underwent a series of four alpha decays, forming dubnium-262, which then decayed by spontaneous fission.

Nihonium's most stable isotope, nihonium-286, has a half-life of about 20 seconds. It decays into roentgenium-282 through alpha decay.

Since only a few atoms of nihonium have ever been produced, it currently has no uses outside of basic scientific research.

Estimated Crustal Abundance: Not Applicable

Estimated Oceanic Abundance: Not Applicable

Number of Stable Isotopes: 0   (View all isotope data)

Ionization Energy: Unknown

Oxidation States: Unknown

Electron Shell Configuration:



2s2   2p6

3s2   3p6   3d10

4s2   4p6   4d10   4f14

5s2   5p6   5d10   5f14

6s2   6p6   6d10

7s2   7p1