Answer:
Energy levels tell us how many <u>electrons </u>there are in an atom.
Hope this helps!
Urban areas seem to have giant increases and de creases compared to rural
Answer:
<em><u>True</u></em>
Explanation:
<em><u>Most rivers begins life as a tiny stream running down a mountain slope..... small streams meet and join together, growing larger and larger until the flow can be called river. On its way down, the water shapes the landscape by wearing away rocks and carving out a network of valley.</u></em>
Answer:
n = 4 there are 16 orbitals