sodík -9 -9 -9 -9 -9 -9 Na-22 F 1,000 9,7.10 0,500 7,3.10 3,8.10 2,4.10 1,5.10 1,3.10 -9 -9 -10 -10 -10 -10 Na-24 F 1,000 2,3.10 0,500 1,8.10 9,3.10 5,7.10 3,4.10 2,7.10