Which of the following is the smallest in size?
O
N
O
Fr

Order the following from smallest to largest atom, electron, quark, proton, neutron, molecule, nucleus

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg

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