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mineralogy elements Tc technetium

Tc - technetium - TRANSITION METAL

2172°
5030°
98
-3
-1
1
2
3
4
5
6
7
43
Tc
[Kr] 4d5 5s2
2
8
18
13
2
1.9
7.28
Synthetic
Radioactive
Liquid
Gaseous
technetium Electronic configuration diagram
Electronic configuration diagram

Name technetium
Number 43
Atomic 98
Symbol Tc
Fusion 2172
Boiling 5030
Density 11.5
Period 5
Group 7
Discovery 1937 Perrier and Segre
Abundance 0.001
Radius 2
Electronegativity 1.9
Ionization 7.28
Number of isotopes 23
Electronic configuration [Kr] 4d5 5s2
Oxidation states -3,-1,1,2,3,4,5,6,7
Electron by energy level 2,8,18,13,2