COMEDK · Chemistry · 23. d and f Block Elements
Mercury is a liquid metal because
- A it has a completely filled \(s\)-orbital
- B it has a small atomic size
- C it has a completely filled \(d\)-orbital that prevents \(d-d\) overlapping of orbitals
- D it has a completely filled \(d\)-orbital that causes d-(d) overlapping
Answer & Solution
Correct Answer
(A) it has a completely filled \(s\)-orbital
Step-by-step Solution
Detailed explanation
Mercury is a liquid metal because it has completely filled \(6 s\)-orbital. The inner \(f\)-orbital poorly screens nuclear charge that stabilise \(6 s\)-orbital. Thus, it is not possible to form any bond with other elements.
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