Question

Which of the following are true for an element? (i) Atomic number = number of protons + number of 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:

Explanation:

Both statements are true. Atomic mass is the sum of number of protons and number of neutrons and atomic number defines the number of protons or number of electrons present in the nucleus of an atom.