Question

Which of the following has significant effect on the properties of $p$-block elements in their absence and presence respectively?

• A. $d$-orbitals in second period and $d$ or $d$ and $f$-orbitals in heavier elements
• B. $d$ and/or $f$-orbitals in heavier elements and $d$-orbitals in second period
• C. $d$-orbitals in second period and $f$-orbitals in heavier elements
• D. $f$-orbitals in heavier elements and $d$-orbitals in second period

Answer 1

Answer: (A)

Correct answer is (a) $d$-orbitals in second period and $d$ or $d$ and $f$-orbitals in heavier elements