Answer:
17
Explanation:
mass number = # of protons + # of neutrons
The correct answer among the choices given is option C. Radioactive decay is the process whereby a stable nucleus loses energy by emitting radiation. It is the spontaneous breakdown of a nucleus that results from the release of energy and matter from the nucleus.
The atom of chlorine has <span>several valence electrons in its</span> valence electrons are in the third shell.
The kind of reaction that is likely to be observed is a single displacement reaction where the metal displaces the H+ ion from the acid. The general chemical reaction would be written as 2M + 2HX = 2MX + H2 where M represents a metal and HX is the acid.