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16. Identify the atom or ion: i) ; and iii Atom Atomic number Mass number 56 54 52 137 131 128 No. of electrons 54 54 54 81 2 77 56 54 2+ 54 56 137 2 131 56 2+ 77 54 76 52 54 ' 52 56 54 137 2+ 13 1282- ' 52 54 56 54 128 ' 54
16. Identify the atom or ion: i) ; and iii Atom Atomic number Mass number 56 54 52 137 131 128 No. of electrons 54 54 54 81 2 77 56 54 2+ 54 56 137 2 131 56 2+ 77 54 76 52 54 ' 52 56 54 137 2+ 13 1282- ' 52 54 56 54 128 ' 54
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Elin HesselLv2
25 Sep 2019
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