109 Mt 278

Meitnerium

UNKNOWN, PROBABLY TRANSITION METAL

Phase: Solid

Discovered: Gesellschaft für Schwerionenforschung

Block: D

Summary

Meitnerium is a chemical element with symbol Mt and atomic number 109. It is an extremely radioactive synthetic element (an element not found in nature that can be created in a laboratory). The most stable known isotope, meitnerium-278, has a half-life of 7.6 seconds.

Source: Wikipedia

Physical Properties

Atomic Mass 278 u

Density 37.4 g/cm³

Melting Point N/A

Boiling Point N/A