How many days will it take for this sample of Fm-253 to decay until only 300 g remain? a. 21 days
b. 6 days
c. 10 days
d. 5 days

i'm wiling to try and you : )

it is stable as it is in group 0 which have full outer shells of electrons

you gotta add the following molecules so we can give u an answer

explanation:

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest