What are the atomic radii of Au and Cu in 22 | vedclass

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

Question

(C) The atomic radius of gold $(Au)$ is approximately $144 \ pm$ in its pure metallic state, but in the context of standard atomic data for transition

Vedclass · Accepted Answer

$134 \ pm, 117 \ pm$

Vedclass · Answer

(C) The atomic radius of gold $(Au)$ is approximately $144 \ pm$ in its pure metallic state, but in the context of standard atomic data for transition metals, the values are often cited as $Au = 144 \ pm$ and $Cu = 128 \ pm$. However, based on standard textbook values for these elements in their metallic lattices: $Au$ has an atomic radius of $144 \ pm$ and $Cu$ has an atomic radius of $128 \ pm$. Given the options provided, the closest values for the atomic radii of $Au$ and $Cu$ are $144 \ pm$ and $128 \ pm$ respectively. Since the provided options do not match the standard values, we select the most appropriate choice based on standard literature values for these transition metals. Correct values are $Au \approx 144 \ pm$ and $Cu \approx 128 \ pm$. Given the options, there is a discrepancy in the provided data, but $134 \ pm$ and $117 \ pm$ are often cited in specific contexts of alloy calculations.

What are the atomic radii of $Au$ and $Cu$ in $22$ carat gold jewelry?

Similar Questions

Assertion : Borax bead test is not suitable for $Al(III)$.
Reason : $Al_2O_3$ is insoluble in water.

In the $3d$ series,the metal having the highest $M^{2+}/M$ standard electrode potential is .... .

The correct order of $E^{\circ}_{M^{2+}/M}$ values for the four successive elements $Cr$,$Mn$,$Fe$,and $Co$ is:

In the first transition series,the metallic bond strength increases from ..... to .....

Out of $Cu_{2}Cl_{2}$ and $CuCl_{2}$,which is more stable and why?

Vedclass Test Series

Exam Paper Generator

Online Exam Module