Nihonium

Unknown properties · atomic number 113

113286NhNihoniumSolidUnknown properties

Nihonium is a chemical element with atomic number 113. It has a symbol Nh. It is a synthetic element (an element that can be created in a laboratory but is not found in nature) and is extremely radioactive; its most stable known isotope, nihonium-286, has a half-life of 20 seconds.

Properties of Nihonium

Element category	Unknown properties
Atomic number	113
Atomic mass	286 u
Phase at STP	Solid
Group	13
Period	7
Block	p
Electron configuration	*[Rn] 5f14 6d10 7s2 7p1
Electrons per shell	2, 8, 18, 32, 32, 18, 3
Melting point	700 K (427 °C)
Boiling point	1430 K (1157 °C)
Density	16 g/cm3
Discovered by	RIKEN

← Copernicium · Periodic table · Flerovium → Fl

About the unknown properties group

Superheavy synthetic elements made atom-by-atom, existing for fractions of a second; their true chemistry is still unmeasured.

Data: Periodic-Table-JSON (CC BY-SA 3.0) · stored statically on our server. https://en.wikipedia.org/wiki/Ununtrium

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8 elements: Superheavy synthetic elements made atom-by-atom, existing for fractions of a second; their true chemistry is still unmeasured.