uhlík -10 -10 -11 -11 -11 -11 C-11 1,000 2,6.10 1,000 1,5.10 7,3.10 4,3.10 3,0.10 2,4.10 -9 -9 -10 -10 -10 -10 C-14 1,000 1,4.10 1,000 1,6.10 9,9.10 8,0.10 5,7.10 5,8.10