5.0 mg of radioactive nobelium-253 was removed from the reactor to be used in an experiment. It took 291 seconds (just under 5 minutes) to

get the sample from the reactor to the laboratory. How many milligrams

of nobelium-253 remained upon arrival to the laboratory? The half-life

of nobelium-253 is 97 seconds.

they include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.

can i get the brainiest answer

i answered it first

3 hours because it is a decent distance.

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms