How many electrons can be held in the first energy level? in the second energy level?

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

Which of the following electromagnetic waves can create ions?

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never