<span>the elements in groups1a, 2a, 3a have positive charges according to their group numbers</span>
B) they have no charges and are inside an atom.*
A. electron, B. Nucleus
Proton is positive charge, electron is negative charge
proton weight, 1 AMU
Answer:
Explanation:
There's no equation attached. What equation is it?
Answer:
She is making kinetic energy when she lifts the ball and when the ball is above her head the ball gains potential energy.
