Model Paper 7 — Chemistry STD 11 Science — Question
Gujarat BoardEnglish MediumSTD 11 ScienceChemistryModel Paper 71 Mark
MCQ
In an atom, the maximum number of electrons in an orbit / principal energy level n is
✓
$2 n^2$
B
$2 n$
C
$2 n -1$
D
$n^2$
✓
Answer
Correct option: A.
$2 n^2$
(a) $2 n^2$ Explanation: Since the maximum number of electrons in each orbital is 2, the maximum number of electrons in an entire quantum level is $2 n ^2$.
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