The half-life for a 100-gram sample of radioactive element X is 5 days. How much of element X remains after 10 days have passed?
a
50 g
b
75 g
c
25 g
d
100 g
1 answer
c) 25 g
a
50 g
b
75 g
c
25 g
d
100 g
1 answer