Report - Graad10.pdf · 11 0.93 Na 23,0 19 0.93 K 39,1 37 0.82 Rb 85,5 55 0.79 Cs 132,9 87 0.7 Fr (223) 4 1.57 Be 9,01 12 1.31 Mg 24,3 20 1.00 Ca 40,1 38 0.95 Sr 87,6 56 0.89 Ba 137,3 88 0.9

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