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JIPMER 2017
Exam
JIPMER
Year
2017
Subject
Chemistry
Chapter
Structure of Atom

JIPMER 2017 · Chemistry · Structure of Atom

The electrons identified by quantum numbers n and l , are as...

The electrons identified by quantum numbers nn and ll, are as follows I. n=4,l=1n=4, l=1 II. n=4,l=0n=4, l=0 III. n=3,l=2n=3, l=2 IV. n=3,l=1n=3, l=1 If we arrange them in order of increasing energy, i.e. from lowest to highest, the correct order is

Options

  1. AIV < II < III < I
  2. BII < IV < I < III
  3. CI < III < II < IV
  4. DIII < I < IV < II

Correct answer

A. IV < II < III < I

Step-by-step solution

(i) ∵\because More be the sum of n+1→n+1 \rightarrow more be the energy. (ii) For same sum, the more value of nn, have higher energy. ∵n+1\because n+1 for →\rightarrow (i) 4+1=54+1=5 (ii) 4+0=44+0=4 (iii) 3+2=53+2=5 (iv) 3+1=43+1=4 ∴\therefore Correct order is →\rightarrow (iv) <\lt (ii) <\lt (iii) <\lt (i)
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