contestada

If an atom has a mass number of 25 and an atomic number of 11 how many neutrons are there in this atom?

a
11 neutrons
b
25 neutrons
c
14 neutrons
d
36 neutrons

Respuesta :

c. 14
you would subtract the mass number from the protons or the atomic number because in order to find the mass number you would add the protons and neutrons :)

Answer: C

Explanation:

Mass number = atomic number + number of neutrons

                 25 = 11 + number of neutrons

                  14 = number of neutrons