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The electronic configurations of four elements are given below: (1) $1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{5}$ (2) $1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{4}$ (3) $1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{3}$ (4) $1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{4}$ Which of the following arrangements gives the correct order in terms of increasing electronegativity of the elements?

   The electronic configurations of four elements are given below:
(1) $1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{5}$
(2) $1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{4}$
(3) $1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{3}$
(4) $1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{4}$
Which of the following arrangements gives the correct order in terms of increasing electronegativity of the elements?

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A Complete Resource Book in Chemistry for JEE Main

A Complete Resource Book in Chemistry for JEE Main

Atul Singhal 1st Edition

Chapter 12, Problem 104

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Step 1

First, let's determine the number of electrons for each element based on their electronic configurations: (1) $1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{~p}^{5}$ - 9 electrons (2) $1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{~p}^{4}$ - 8 electrons (3) $1 Show more…

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