In what form does the sun's energy arrive on earth?

When the ball is rising up, it gains kinetic energy. when the ball reaches the very top, it will have all potential energy, until it falls back down and gains it kinetic energy. finally when you catch the ball or it falls back down, it would have gained its potential energy back.

Aneutral atom must have the same number of neutrons and protons? no, they must have the same number of protons and electrons