Answer:
d ) 16 years
Explanation:
If n be number of half years passed then
[tex][tex]\frac{m}{m_0} =\sqrt[n]{\frac{1}{2} }[/tex][/tex]
m is mass undecayed m₀ is original mass
Here m = 6 g
m₀ =24 g
Putting these values
[tex]\frac{6}{24} =\sqrt[n]{\frac{1}{2} }[/tex]
n = 2 half lives
age = 2 x 8 = 16 years
= 16 years
