Based on electronic configuration which of these will exist in molecular state instead of atomic state?
A
Tetraatomic
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B
Monoatomic
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C
Triatomic
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D
Polyatomic
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Solution
The correct options are A
Tetraatomic
B
Monoatomic
Electronic Configuration: Oxygen - 2,6 Nitrogen - 2,5 Helium - 2 From the electronic configuration we can see that oxygen and nitrogen need to achieve noble gas configuration,so will form molecule as O2 and N2 respectively. Whereas Helium is noble gas and will exist in atomic state.