MCQ
Mono atomic element among the following is:
  • A
    Phosphorus
  • B
    Oxygen
  • Krypton
  • D
    Sulphur

Answer

Correct option: C.
Krypton
Oxygen is diatomic gas.
Phosphorous is tetra atomic.
Sulphur is polyatomic.
Whereas being an inert gas, Krypton is monoatomic.

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