Question

Which of the following statements is true about ionic radius? Ionic radius

A. increases as nuclear charge increases
B. decreases as nuclear charge increases
C. decreases as nuclear charge decreases
D. remains constant as nuclear charge increases​

Answer 1

C. decreases as nuclear charge decreases

Step-by-step explanation:

Ionic radius is the distance between the nucleus of an ion and its outermost electrons. As the nuclear charge increases, the number of protons in the nucleus increases, which increases the attraction between the nucleus and the electrons. This increased attraction pulls the outermost electrons closer to the nucleus, decreasing the ionic radius. Conversely, if the nuclear charge decreases, the outermost electrons are farther away from the nucleus, leading to an increase in ionic radius.