Question

Which if the following are true for an element
a)Atomic number=number of protons+number of electrons

b)Mass number=number of protons+number of neutrons

c)Atomic mass=number of protons=number of neutrons

d)Atomic number=number of protons=number of electrons​

Answer 1

Answer:

b and are true

Explanation:

(a) cant be true because atomic number is equal to number of protons or number of electrons because electrons and protons are same in number

(c) can't be true because atomic mass is the weight of the mass