I think this question is talking about electrons (since they flow freely in the electron cloud of an atom).
Answer:
256.52 g/m
Explanation:
Each S has a molecular mass of 32.056 g/mol so multiply that by 8 and you get 256.52.
2Pb²⁺ + O2 -----> 2Pb⁴⁺ + 2O²⁻
(Pb²⁺-2e ----> Pb⁴⁺) *2
O2 +4e ----->2O²⁻
add 2 last equations
2Pb²⁺-4e+ O2 +4e ----> 2Pb⁴⁺+ 2O²⁻
2Pb²⁺ + O2 -----> 2Pb⁴⁺ + 2O²⁻
Explanation:
Evirmental disruption because if they had stability then they would not need change. The other two don't make sense....I hope this helps