Because of lanthanoid contraction,which of the following pairs of elements

Because of lanthanoid contraction,which of the following pairs of elements have nearly same atomic radii?(Numbers in the parenthesis are atomic numbers)

Options

(a) Zr(40)andNb(41)
(b) Zr(40) and Hf(72)
(c) Zr(40) and Ta(73)
(d) Ti(22) and Zr(40)

Correct Answer:

Zr(40) and Hf(72)

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. By increasing the temperature , the vapour pressure of a substance
  2. The maximum number of electrons in a subshell is given by the expression
  3. Which of the following is the most electropositive element
  4. Which one of the following statements about the nitro group in organic compound
  5. In which of the following pairs of molecules/ions, the central atoms have