If the half-life of an isotope is 50 years, calculate the percent of original radioactive atoms that remain radioactive after 200 years. A
none

B
50%

C
12.5%

D
6.25%

A. none

Explanation:

after 200 years, it would be 100 years gone

50+50=100

explanation: well the force of an object when it lands sitting on the ground isthe force of a wide rage of situations crucial to physics? ; ( i 'm trying my best to alot but im not smart enofe you for giving me this chance though! 3(

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .