The first option Forsure .
The atomic number represents the number of protons present in an atom.Therefore,the answer is B.
Answer is (3) protons and neutrons.
(P.S. The outer part contains the electrons)
Answer:
1. In the beaker, stir 1/2 cup of Epsom salts with 1/2 cup of very hot tap water for at least one minute. ...
2. Add a couple drops of food coloring if you want your crystals to be colored.
3. Put the beaker in the refrigerator.
4. Check on it in a few hours to see a beaker full of epsom salt crystals!
Explanation:
