Question

Plz answer this
subject is chemistry..​

Answer 1

H2 (hydrogen) is Diatomic as there are 2 atoms connected in a covalent bond.
O3 (Ozone) is triatomic as there are 3 atoms connected in a covalent bond.
He (helium) is monoatomic as it is a noble gas and its shell is full.
Br2 (bromine) is Diatomic as there too two atoms has combined in a covalent bond .

Answer 2

Answer:

monoatomic gas is helium{He}

Diatomic gas are hydrogen {H2} and Br2

Triatomic gas is Ozone {O3}