Which of the following represents the correct | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) In the $3d$ transition series,the atomic radii generally decrease from $Sc$ to $Mn$ due to an increase in effective nuclear charge.However,from $F

Vedclass · Accepted Answer

Both $(A)$ and $(B)$

Vedclass · Answer

(C) In the $3d$ transition series,the atomic radii generally decrease from $Sc$ to $Mn$ due to an increase in effective nuclear charge.However,from $Fe$ to $Cu$,the atomic radii remain almost constant because the increase in nuclear charge is balanced by the shielding effect of $d$-electrons.For $Zn$,the atomic radius increases due to inter-electronic repulsions among $d$-electrons,which causes the electron cloud to expand.Comparing $Cr$ $(3d^5 4s^1)$ and $Mn$ $(3d^5 4s^2)$,the atomic radius of $Cr$ is larger than $Mn$ $(Cr > Mn)$.Comparing $Cu$ $(3d^{10} 4s^1)$ and $Zn$ $(3d^{10} 4s^2)$,the atomic radius of $Zn$ is larger than $Cu$ $(Cu Therefore,both statements $(A)$ and $(B)$ are correct.

Which of the following represents the correct order of atomic radii (metallic radii) for the given transition elements?

Similar Questions

To what extent do the electronic configurations decide the stability of oxidation states in the first series of the transition elements? Illustrate your answer with examples.

Which of the following is a soft metal?

Which of the following transition metals can exhibit the highest oxidation state?

The transition metal having the highest $3^{rd}$ ionisation enthalpy is:

What are $d$-block elements and transition elements? Explain characteristics of $d$-block elements.

Vedclass Test Series

Exam Paper Generator

Online Exam Module