Mass number - the number of and making up an atom's nucleus

Idon't really understand this can you me and show your work.☺☺[ chemistry b] subject [ electron transfer in lonic bonds]grade( 12)

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?