Question

which of the following are true for an element

i)Atomic number=number of protons+number if electrons

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

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

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

Answer 1

Answer:

(ii)&(iv)

Explanation:

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

iv)Atomic number=number of protons=number of electrons