TS EAMCET · Chemistry · Classification of Elements and Periodicity in Properties
The atomic radius of gallium is less than that of aluminium. This is due to
- A Greater shielding power of s-electrons of gallium atom
- B poor shielding power of s-electrons of gallium
- C Poor shielding power of d-electrons of gallium
- D Greater shielding power of d-electrons of gallium
Answer & Solution
Correct Answer
(C) Poor shielding power of d-electrons of gallium
Step-by-step Solution
Detailed explanation
Due to poor shielding effect of d-electrons of gailium, it leads to increase in effective nuclear charge which inturn leads to decrease in the radius of gallium as compared to aluminium.
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