CHEM 105N 1st Edition Lecture 18 Outline of Last Lecture I. Metals form Positive IonsII. Non-metals form Negative IonsIII. Ionic Charge by Group NumberIV. Ionic CompoundsV. Metals with Variable ChargeOutline of Current Lecture I. Polyatomic IonsCurrent LectureI. Polyatomic Ions:- A group of atoms with an overall ionic charge- Atoms with Greater Oxygen: end in ate (phosphate)- Atoms with Less Oxygen: end in ite (phosphite)- Atoms with a Hydrogen attached: begin with bi (bicarbonate)- Mg(NO3)2 magnesium nitrate- Cu(ClO3)2 copper(II) chlorate- Fe2(SO4)3 iron(III)sulfate- Ba3(PO3)2 barium phosphate- Aluminum nitrateAl(NO3)3- Copper(II) nitrateCu(NO3)2- Iron(III) HydroxideFe(OH)3- Tin(IV) HydroxideSn(OH)4- Potassium bromateKBrO3- Calcium carbonate CaCO3- Sodium phosphateNa3PO4- Iron(III)oxideFe2O3These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- Iron(II)NitriteFe(NO2)2- Ca3(PO4)2Calcium Phosphate- FeBR3Iron(III) bromide- Al2s3 aluminum sulfide- Zn(NO2)2 zinc nitrite- NaHCO3 sodium bicarbonate OR hydrogen
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