Question

Which of the following best completes the statement? Within a shell (the same valence of n for all electrons), s electrons are screened _____ than p electrons, p electrons are screened _____ than d electrons.

a) more effectively, less effectively
b) less effectively, more effectively
c) equally, less effectively
d) more effectively, equally

Answer 1

Within a shell, s electrons are screened more effectively than p electrons, and p electrons are screened less effectively than d electrons.

This correct answer is a)

Step-by-step explanation:

Within a shell, s electrons are screened more effectively than p electrons, and p electrons are screened less effectively than d electrons.

This is because the s electrons are closer to the nucleus and have greater electron density near the nucleus, which allows them to shield the p electrons effectively.

On the other hand, the p electrons are further away from the nucleus and have less electron density near the nucleus, making them less effective at shielding the d electrons.

Therefore, the correct option is a) more effectively, less effectively.

This correct answer is a)