AP EAMCET · Chemistry · Classification of Elements and Periodicity in Properties
The second ionisation energies of \(\mathrm{Li}, \mathrm{Be}, \mathrm{B}\) and \(\mathrm{C}\) are in the order
- A L \(>\) C \(>\) B \(>\) Be
- B Li \(>\) B \(>\) C \(>\) Be
- C \(\mathrm{Be}>\mathrm{C}>\mathrm{B}>\mathrm{Li}\)
- D B \(>\) C \(>\) Be \(>\) Li
Answer & Solution
Correct Answer
(B) Li \(>\) B \(>\) C \(>\) Be
Step-by-step Solution
Detailed explanation
The second ionisation energy is the energy required to remove an electron from a \(\mathrm{I}+\) cation in the gaseous state. \(X^{+}(g) \rightarrow X^{2+}(g)+e^{-}\) Just like the first ionisation energy, the second ionisation energy is affected by size, effective nuclear…
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