Isotopes have same number of protons but different number of neutrons.
(a) same number of neutrons but different number of protons
(b) same number of neutrons but different number of electrons
(c) different number of protons as well as different number of neutrons
(d) different number of neutrons but same number of protons
Nuclei with the same number of protons but a different number of neutrons are called isobars
Nuclei with the same number of neutrons but a different atomic number are called isotopes
Nuclei with the same mass number are called isotones
Question 07
Two atoms are said to be isobars if ?
(a) They have same atomic number but different mass number
(b) They have same number of electrons but different number of neutrons
(c) They have same number of neutrons but different number of electrons
(d) Sum of the number of protons and neutrons is same but the number of protons is different