All nickel atoms would have the same number of protons or atomic number.
Answer:
1st = saturated
Explanation:
Bro first ka answer saturated he
Answer:
Explanation:
The Ce metal has electronic configuration as follows
[Xe] 4f¹5d¹6s²
After losing 4 electrons , it gains noble gas configuration ,. So Ce ⁺⁴ is stable.
Eu has electronic configuration as follows
[ Xe ] 4 f ⁷6s²
[ Xe ] 4 f ⁷
Its outermost orbit contains 2 electrons so Eu²⁺ is stable. Its +3 oxidation state is also stable.
Ce⁺²
There are 16 hydrogen atoms
57.1g * 6.022*10^23 / 22.9 * 2 = 7.51*10^23 molecules