question_answer

The total number of nuclides from the following which are \[{{\beta }^{\oplus }}\] emitter is _______.

(I) \[_{20}C{{a}^{49}}\]

(II) \[_{80}H{{g}^{195}}\]

(III) \[_{5}{{B}^{8}}\]

(IV) \[_{67}H{{o}^{150}}\]

(V) \[_{13}A{{l}^{30}}\]

(VI) \[_{36}K{{r}^{39}}\]

Answer:

3