C is the answer hope the answer is right
It would emit energy in most of the cases in form of light
Answer:
Elements in which the d-sublevel is being filled have the properties of metals
<span>I bet this is the notation used in nuclear reactions. The superscript represents the mass number while the subscript represents the atomic number of the element X. So, we find the element with an atomic number of 12. That would be Magnesium or Mg.</span>
