Question

k+ is bigger in size than ca2+ true false

Explanation:

Both $K^+$ and $Ca^{2+}$ are isoelectronic (have the same number of electrons). The ion with more protons has a stronger attraction for the electrons, resulting in a smaller ionic radius. Calcium ($Ca$) has 20 protons and potassium ($K$) has 19 protons. Since $Ca^{2+}$ has more protons than $K^+$, it pulls the electrons in more tightly, making $K^+$ bigger in size.

Answer:

True