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JEE Main 201510 AprilOnline
Exam
JEE Main
Year
2015
Date
10 April
Mode
Online
Subject
Chemistry
Chapter
Classification of Elements and Periodicity in Properties

JEE Main 2015 · 10 April · Online · Chemistry · Classification of Elements and Periodicity in Properties

In the long form of the periodic table, the valence shell...

In the long form of the periodic table, the valence shell electronic configuration of 5s25p45{s}^{2}5{p}^{4} corresponds to the element present in:

Options

  1. AGroup 16 and period 5
  2. BGroup 17 and period 5
  3. CGroup 16 and period 6
  4. DGroup 17 and period 6

Correct answer

A. Group 16 and period 5

Step-by-step solution

Asgiven, electronicconfigurationofvalenceshell ( outermostshell ) is5s^{2}5p^{4} . . thatmeansprinciplequantumnumberofvalenceshellis5 . .Asweknow, principlequantumnumberofvalenceshellshowsthe ' period ' ofthatelementinperiodictable . . Henceperiodoftheelementis5Astherearetotal6electronsinvalenceshelloritsimilartogeneralvalenceshellconfigurationofgroup16i . e . ns^{2}np^{4}, henceitsgroupis16 . . elementcorrespondtoperiod5andgroup16
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