Answer:
B
Explanation:
it will not be waterproof anymore
The link above is a hacker
100%.....50%.....25%......12.5%......6.25%......3.125%......1.5625%
...........1............2...........3..............4.................5................6..................
After six half-lives would be found 1.5625% of readioactive species.
Explanation:
By losing or gaining electrons from its outermost orbit
