03 arrrange the following
in decreasing order of there
et ses activity. NA,MG,FE,H,AG,AU,K,AI
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14+1 =15, 13+7=20, 6+5=11, 8, 1+7=8 1+21=22, 10, 1+9=10
22, 20, 15,11,10,10,8,8,
au,mg, na, fe, ai,k, ag h
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