d-block series: position, number of elements and general configuration

1. A.
   These exhibit properties between those of $s$ and $p$ block elements.
2. B.
   All these elements are grouped as 3d to 6d series.
3. C.
   5d series is comprised of all elements from La $(Z = 57)$ to Hg $(Z = 80)$.
4. D.
   Elements of 6d series belong to the $7^{\text{th}}$ period of the periodic table.

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1. A.
   Hg
2. B.
   Cd
3. C.
   In
4. D.
   Ag

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1. A.
   Group 4 to 13, period-3
2. B.
   Group 3 to 12, period-4
3. C.
   Group 5 to 14, period-4
4. D.
   Group 3 to 12, period-5

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1. A.
   8
2. B.
   10
3. C.
   14
4. D.
   24

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1. A.
   4 d and 5d
2. B.
   5d and 6d
3. C.
   3d and 4d
4. D.
   3d and 6d

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1. A.
   3d series elements
2. B.
   4d series elements
3. C.
   5d series elements
4. D.
   6d series elements

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1. A.
   $3$
2. B.
   $4$
3. C.
   $10$
4. D.
   $12$

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1. A.
   $[\mathrm{Ar}]\ 4d^{1-10}\ 4s^2$
2. B.
   $[\mathrm{Kr}]\ 4d^{1-10}\ 5s^{0-2}$
3. C.
   $[\mathrm{Xe}]\ 4d^{1-10}\ 4s^2$
4. D.
   $[\mathrm{Rn}]\ 4d^{1-10}\ 6s^2$

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