Question

Q 11.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
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (ii) and (iv)​

Answer 1

Answer:

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

AND

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

Explanation:

IS THE ANSWER OF THIS QUESTION

Answer 2

Answer:

(d) (II) and(iv)

Explanation:

Mass number = number of protons + number of neutrons

Atomic number = number of protons = number of electrons