I know for sure that it is francium
Option 4. ratio of electrons to protons
Isotope that has atomic number of 82 is stable. An element that has an atomic number ∠82 more stable except Tc and Pm. Also there is the concept that isotopes consisting a combination of even-even,even-odd,odd-even, and odd-odd are all stable. Many isotopes with no magic numbers of nucleons are stable
39 J
P=Fd/t i belive is the answer
Answer:
2Fe + 3Cl=2FeCl3 therefore the coefficent for Fe is 2.
Explanation:
