Plag: Valencies of lead (Pb)(Pb) is 2, 42, 4. Nws yog tsim los ntawm cov kav dej ion ntawm cov hlau lead.
Dab tsi yog qhov tseem ceeb ntawm cov hlau lead hauv Plumbic oxide?
Valencies of lead (Pb) is 2, 4. Plumbous ions has a valency of +2 i.e it exists as Pb+2. Plumbous ions muaj qhov tseem ceeb ntawm +4 piv txwv li nws tshwm sim li Pb + 4. Piv txwv li, Lead(II) chloride nyob rau hauv PbCl2 Nws yog tsim los ntawm cov plumbous ion ntawm lead (IV) chloride yog PbCl4.
Dab tsi yog qhov muaj pa oxygen?
Qhov siab ntawm oxygen yog 2, vim nws xav tau ob lub atom ntawm hydrogen los ua dej.
Nyiaj kub yog dab tsi?
Lub peev xwm sib txuas ntawm lub atom yog hu ua nws qhov muaj txiaj ntsig. Tus naj npawb ntawm daim ntawv cog lus uas ib qho atom tuaj yeem tsim ua ib feem ntawm qhov sib xyaw yog qhia los ntawm qhov muaj txiaj ntsig ntawm lub caij. Kub muaj qhov muaj nuj nqis ntawm 3 lossis 1.
Yuav ua li cas peb xam qhov muaj nuj nqis?
Kev lej peb tuaj yeem hais tias yog lub plhaub sab nraud ntawm lub atom muaj 4 lossis tsawg dua 4 electrons, ces qhov muaj nuj nqis ntawm ib lub caij yog sib npaug rau cov khoom siv hluav taws xob tam sim no nyob rau hauv lub plhaub sab nraud thiab yog tias nws ntau dua 4., ces qhov valency ntawm ib lub caij yog txiav txim los ntawm rho tawm tag nrho cov xov tooj ntawm electrons…
