Weighing atoms - metal name followed by...

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Weighing atoms mass spectrometry is used to experimentally determine isotopic masses and abundances interpreting mass spectra average atomic weights o computed from isotopic masses and abundances o significant figures of tabulated atomic weights gives some idea of natural variation in isotopic abundances Predicting ion charges rule for metal ion charges : metals lose electrons to get the same number of electrons as the nearest noble gas o rule only works if
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predicted charge is +3 or less; more than one common cation usually exists in this case rule for nonmetal ion charges : nonmetals gain electrons to get the same number of electrons as the nearest noble gas o rule only works if predicted charge is -3 or less; nonmetals that break this rule usually form covalent, not ionic, compounds when the rules don't help, get charges from a formula for a compound of the ion Naming monatomic ions metal cations o cation name =
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Unformatted text preview: metal name followed by "ion" o if more than one cation is possible, the charge must be specified in the name: two naming styles sy st e m ati c na m e : m et al na m e fol lo w ed by ch ar ge on m et al at o m, wr itt en as a R o m an nu m er al, in pa re nt he se s co m m o n na m e : lat in ro ot fol lo w ed by-o us for lo w ch ar ge for m, -ic for hi gh ch ar ge for m ex a m pl es Table: Metal cations with more than one common charged form cation formula systematic name Fe 2+ iron(II) ion Fe 3+ iron(III) ion Cu + copper(I) ion Cu 2+ copper(II) ion Hg 2 2+ mercury(I) ion Hg 2+ mercury(II) ion Pb 2+ lead(II) ion Pb 4+ lead(IV) ion Sn 2+ tin(II) ion Sn 4+ tin(IV) ion o anion name = nonmetal root ending with "-ide " H-hydride ion O 2-oxide ion F-fluoride ion S 2-sulfide ion Cl-chloride ion Br-bromide ion N 3-nitride ion I-iodide ion...
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This note was uploaded on 11/22/2011 for the course CHEMISTRY CHM1025 taught by Professor Laurachoudry during the Fall '10 term at Broward College.

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Weighing atoms - metal name followed by...

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