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JEE Advanced 2014Paper 1
Exam
JEE Advanced
Year
2014
Paper
Paper 1
Subject
Chemistry
Chapter
Structure of Atom

JEE Advanced 2014 · Paper 1 · Chemistry · Structure of Atom

In an atom, the total number of electrons having quantum numbers n...

In an atom, the total number of electrons having quantum numbers n=4,∣ml∣=1n = 4, | {m}_{l} | = 1 and ms=–1/2{m}_{s} = – 1 / 2 is

Correct answer

6

Step-by-step solution

n=4n = 4
l=0,1,2,3l = 0,1, 2,3
\left|{m}_{l}\right| = 1 ⇒ \pm 1<br/><br />{m}_{s} = - \dfrac{1}{2}<br/>For<br />Forl = 0, {m}_{l} = 0<br/><br />l = 1, {m}_{l} = - 1, 0, + 1<br/><br />l = 2, {m}_{l} = - 2, - 1, 0, + 1, + 2<br/><br />l = 3, {m}_{l} = - 3, - 2, - 1, 0, + 1, + 2, + 3<br/>So,sixelectronscanhave∣ml∣=1<br />So, six electrons can have \left|{m}_{l}\right| = 1 & ms=−12{m}_{s} = - \dfrac{1}{2} .
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