Question

The four atomic species can be represented as follows. Out of these, the two species which can be termed isobars are :

(i) ${}_{60}^{201}X$ (ii) ${}_{61}^{200}X$

(iii) ${}_{58}^{200}$ (iv) ${}_{60}^{203}X$

(a) (i) and (ii)

(b) (ii) and (iii)

(c) (i) and (iii)

(d) (i) and (iv)

Answer 1

(b) (ii) and (iii)


Isobars are the atoms of different elements having different atomic numbers but the same mass number (or same atomic mass).