Question

if mole percent of C-12 and C-14 in nature is 98percent and 2 percent respectively then the number of C-14 atoms in 12gram of carbon is

Answer 1

No. Of carbon atoms in 12 g = 6.023*10^23

Thus, no.of C-14 atoms = 2% of 6.023*10^23

; ;; =0.02* 6.023*10^23

= 12.046*10^21 atoms