Multiple choice

Principal quantum number ' n ' describes ?

  1. shape of the orbital .

  2. subshell .

  3. Main energy shell of electron .

  4. spin of electrons .
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

this option is correct because , energy is given by , E = -(13.6 Z2 ) / n2 . hence energy is dependent on principal quantum number . hence this option is correct .

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