115 Mc 289
Moscovium
UNKNOWN, PROBABLY POST-TRANSITION METAL
Phase: Solid
Discovered: Joint Institute for Nuclear Research
Block: P
Summary
Moscovium is the name of a synthetic superheavy element in the periodic table that has the symbol Mc and has the atomic number 115. It is an extremely radioactive element; its most stable known isotope, moscovium-289, has a half-life of only 220 milliseconds. It is also known as eka-bismuth or simply element 115.
Source: WikipediaPhysical Properties
Atomic Mass 289 u
Density 13.5 g/cm³
Melting Point 670 K
Boiling Point 1400 K