Question

write the atomicity of the following elements
helium
argon
hydrogen
nitrogen
chlorine
oxygen
ozone
phosphorus

Answer 1

helium - monatomic
argon - monatomic
hydrogen - diatomic
nitrogen - diatomic
chlorine - diatomic
oxygen - diatomic
ozone - triatomic
phosphorus - tetratomic

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Answer 2

Hi Brainy,
First, let's understand...
What is Atomicity?
Atomicity is a number of atoms present in a compound.
Your question is
what is atomicity of helium,argon,hydrogen,nitrogen,chlorine, oxygen,ozone,phosphorus
Answer
Helium (He) atomicity - 1
Argon (Ar) atomicity - 1
hydrogen (H2) atomicity - 2
nitrogen (N2) atomicity - 2
chlorine (Cl2) atomicity - 2
oxygen (O2) atomicity - 2
ozone (O3) atomicity - 3
phosphorus (P4) atomicity - 4

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