The answer is
A half life pertains to the time it takes for exactly half of a substance to disappear. So, if U235 has a half life of 700 million years, it will take 700 <span>million years for half of it to decay. That would leave .5kg or 500g.</span>
Answer:
11 is your corect awnser neess to be 20 characters
Step-by-step explanation:
5 times 11 is 55
Yes but I’m not sure what you are trying to ask <3
Answer:
The 4th answer
Step-by-step explanation: