TS EAMCET · Chemistry · Classification of Elements and Periodicity in Properties

What is the correct order of atomic/ionic size?

A \(\mathrm{Cu}^{+} < \mathrm{Cu} < \mathrm{Zn}{ }^{2+} < \mathrm{Ag}\)
B \(\mathrm{Zn}^{2+} < \mathrm{Cu}^{+} < \mathrm{Cu} < \mathrm{Ag}\)
C \(\mathrm{Ag} < \mathrm{Cu} < \mathrm{Cu}^{+} < \mathrm{Zn}^{2+}\)
D \(\mathrm{Cu}^{+} < \mathrm{Zr}^{2+} < \mathrm{Cu} < \mathrm{Ag}\)

Verified Solution

Answer & Solution

Correct Answer

(B) \(\mathrm{Zn}^{2+} < \mathrm{Cu}^{+} < \mathrm{Cu} < \mathrm{Ag}\)

Step-by-step Solution

Detailed explanation

Neutral atom tend to increases size down the group and across a period due to electromagnetic interaction between electrons in an atom modify the \(Z_{\text {eff }}\). \[ Z_{\text {eff }}=Z-S=\text { sheilding effect } \] As an additional electrons occupies the electrons in…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Explore more questions on app

From TS EAMCET

Explore more questions on app

	Column-1 Reaction		Column-2 product
A		I	Cyclohexanol
B		II	Benzyl alcohol
C		III	Toluene
		IV	Benzaldehyde
		V	Cyclohexane