The radii of the sodium and potassium ions are 102 pm and 138 pm, respectively. which compound has stronger ionic at- tractions, sodium chloride or potassium chloride?

The NaCl has more attraction as compare to KCl.

Explanation:

As we know down the group size is increases. As the size of K is greater than Sodium. Due to greater size of atom, the distance between the K and Cl is greater than NaCl . Due to greater distance between the atoms , attraction become less.

Summary:

Greater size (greater radius) between atoms , lesser will be attraction.

A) the enthralling of formation for pure element in its standard state is always positivehope this : )

You use the atomic number to find out how many protons and neutrons there are in the atom. you use the atomic mass to find out how many protons and electrons there are in the atom.