Periodic System for Chemists

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Argon Period

Ar - Atomic Number 18

Period
3
Ranking:
#18 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

BlockGroupseries_id

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