How many obits are there

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

What are the 4 phases of matter in order of increasing engery content?

Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape