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JEE Main levelSingle correct optionDifficulty 2 of 3pt047

An element has atomic number 34. Its group and period in the long form of the periodic table are

Agroup 14, period 4
Bgroup 16, period 3
Cgroup 6, period 4
Dgroup 16, period 4

Answer: D

Z = 34

gives

[Ar] 3 d^{10} 4 s^{2} 4 p^{4}

. The highest shell is 4, so period 4. For a p-block element group

= 10 + 2 + 4 = 16

.

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