Technetium (Tc) is a chemical element belonging to the category Transition metal, with atomic number 43 and atomic mass [98]. This sheet describes its fundamental properties, periodic position and physical characteristics.
Stays within its layerAstronomy
Neighbourhood in the graph
Above, what contains it; below, what it contains; on the right, what links it to another layer.
Astronomy · Chemical element
Technetium
EL17
Identity
Name: Technetium
Symbol: Tc
Atomic number: 43
Atomic mass: [98] u
Position in the periodic table
Group: 7
Period: 5
Category: Transition metal
Physico-chemical properties
Standard state: Solid
Melting point: 2157°C
Density: 11.0 g/cm³
Electron configuration: [Kr] 4d⁵ 5s²
Scientific description
Technetium is a chemical element with symbol Tc and atomic number 43.
It belongs to the category of Transition metal and occupies group 7 and period 5.
Its standard atomic mass is [98] u.