Nh
Nihonium · element 113
Unknown, Probably Transition Metal · Solid at room temperature
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.
Key facts
Atomic mass
286 u
how heavy one atom is
Phase (room temp.)
Solid
Density
16 g/cm³
how tightly packed it is
Melting point
700 K (427 °C)
when solid turns to liquid
Boiling point
1430 K (1157 °C)
when liquid turns to gas
Period
7
its row in the periodic table
Group
13
its column in the periodic table
Block
P-block
the neighbourhood it lives in
Electron configuration
*[Rn] 5f14 6d10 7s2 7p1
where its electrons live
Shells
2 · 8 · 18 · 32 · 32 · 18 · 3
electrons in each layer, inside to out
Discovered by
RIKEN
who found it
Source: Wikipedia