Question

Which one is not the property of Lithium by which it differs from the rest of the alkali metals?

• A. Extremely small size of Lithium atom
• B. Greater polarizing power of Lithium ion
• C. Highest electropositive character and highest ionization energy
• D. Non availability of vacant d-orbitals in the valence shell

Answer 1

The correct option is C Highest electropositive character and highest ionization energy

Lithium by which it differs from the rest of the alkali metals which is called as anamalous property .this is due to the following facts.
1.Extremely small size of Lithium atom as compared to other alkali metals.
2.Greater polarizing power of Lithium ion as compared to other alkali metals.
3.Least electropositive character and highest ionization energy as compared to other alkali metals.
4.Non availability of vacant d-orbitals in the valence shell as compared to other alkali metals.
So option C is not the property of Li for anomalous behaviour of Li with the rest of the elements.
Hence option C is correct