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JEE Main levelSingle correct optionDifficulty 2 of 3pt010

An element has the configuration . It is in

  1. Agroup 14, period 6, p-block
  2. Bgroup 4, period 6, d-block
  3. Cgroup 14, period 5, p-block
  4. Dgroup 12, period 6, d-block

Answer: A

The highest shell is 6 so period 6. The last electrons enter 6p, so it is p-block, and group (lead).
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