Periodic System for Chemists
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Technetium Period
Tc - Atomic Number 43
Period
5
Ranking:
#43 of 118
Highest
H: 1.00
Lowest
Og: 7.00
About the Period
Horizontal row in the periodic table indicating the number of electron shells.
Top 10 by Period
Top 10 by Period
#1
H
Hydrogen
1.00
#2
He
Helium
1.00
#3
Li
Lithium
2.00
#4
Be
Beryllium
2.00
#5
B
Boron
2.00
#6
C
Carbon
2.00
#7
N
Nitrogen
2.00
#8
O
Oxygen
2.00
#9
F
Fluorine
2.00
#10
Ne
Neon
2.00
Related Properties
Block
Group
series_id