berylium

berylium

-10 -10 -11 -11 -11 -11

Be-7 0,020 1,8.10 0,005 1,3.10 7,7.10 5,3.10 3,5.10 2,8.10

-8 -9 -9 -9 -9 -9

Be-10 0,020 1,4.10 0,005 8,0.10 4,1.10 2,4.10 1,4.10 1,1.10