Answer:
https://www.khanacademy.org/science/chemistry/oxidation-reduction/batter-galvanic-voltaic-cell/v/redox-reaction-from-dissolving-zinc-in-copper-sulfate
Explanation:
watch the vid
The element is Chromium because it contains 26 protons
If my memory serves me well, the right one is B. There is equal number of each type of atom on the reactant and product side. Check it, if I'm wrong.
Answer:
second one is the answer
Explanation:
because when filling electrons in the orbital we first half fill each of them as it gains a stable configuration
