How many grams of colbalt-60 would remain at 6 half-lives?

1/64 grams of however much originally there is

Explanation:

each half life half of the material has decayed so 0.5*0.5*0.5*0.5*0.5*0.5=1/64

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

give me abc and i will get it for u.