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Electronic configuration of four elements \( \mathrm{A}, \mathrm{B}, \mathrm{C} \)
\( \mathrm{P} \) and \( \mathrm{D} \) are given below:

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a. \( 1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} \)
b. \( 1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{4} \)
c. \( 1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{1} \)
d. \( 1 s^{2} 2 s^{2} 2 \mathrm{p}^{5} \)
The correct order of increasing tendency to gain electron is:
(1) a \( \) c \( \) b \( \) d
(2) a \( \) b \( \) c \( \) d
(3) d \( \) b \( \) c \( \) a
(4) d \( \) a \( \) b \( \) c
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