Answers

2016-04-11T10:27:28+05:30
Mono-atomic ⇒ Ag (Silver) & Ca (Calcium).

Tetra atomic ⇒  P (Phosphorus) & O₃ (Ozone)..
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2016-04-11T11:01:01+05:30
Elements whose atomicity is TETRA ATOMIC---> Phosphorus, Ozone, Gold, Phospate etc.............. Elements whose atomicity is MONATOMIC----> Helium,Argon, Neon, Krypton, Xenon etc.
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