Question

In iron, the differentiating electron enters the orbital of a penultimate shell.

• A. True
• B. False

Answer 1

The correct option is A True

1. Iron ($\mathrm{Fe}$) is a $\text{'}\mathrm{d}\text{'}$block element.
2. The $\text{'}\mathrm{d}\mathrm{block}\text{'}$ elements are also called transition elements.
3. These are the elements in which the differentiating electron enters into a $\text{'}\mathrm{d}\text{'}$orbital of the penultimate shell $(\mathrm{n}-1)$.

Hence, the given statement is TRUE.