Answer Happy

WS 5-1: Is it Ionic or Covalent? Write the formula or name: I or C formula name 1. lithium oxide 2. aluminum sulfidc 3. copper(II) sulfate 4. silver nitride 5 carbon tetrachloride 6. potassium bicarbonate 7. methane 8. iron(III) carbonate 9. nitrogen triiodide 10. tin(II) acetate 11. PbCl2 12. Ca(NO2)2 13. N203 14. Srsos 15. LICIO 16. Mg(OH)2 17 Zn(CN) 18. Clos 19. SO4 20. Curs
WS 5-2: Molecular Geometry & VSEPR Theory bond number of electron groups around central atom number of honded atoms electron group geometry number of lone pairs molecular geometry angle mode! 2 3 2А 3 DI 518
So low 1. Find the total valence electrons -add group oumbers for lons, add 1 electron for each -1 charge, subtract 1 electron for each +1 charge 2 Find the central atom H&F are always "terminal VO the central atom is the one that appears once for HO & something else, the something else is central Ciscentralin most containing compounds. 3. Write the symbols of the atoms in a skeletal arrangement & place a single bond between adyacent atoms - Subtract the electrons used. 4 Place lone pairs of electrons around outermostatoms to satisfy octet rule (Hissatisfied with 2 electrons) 5. electrons remain, assign them to the central atom (elements in the * & higher periods can accommodate more than 8 valence electrons) 6. If the central atom still does not have 4 pair, convert one or more terminal atom one pairs to double or triple bonds (C, O, N, S, Ponly). valence electron dot total electron groups number of number of election group molecular Formula structure sound centralatom Lone pales Emery geometry bond SF2 AsBrz 03 Вен, SICI BF3 NOZ
WS 5-3: Molecular Geometry Practice Fill in the missing information about the following covalent compounds or polyatomic ions: valence DS formula/name electrons molecular geometry/bond angles trigonal pyramidal PBrs <109° CCl4 0 CS2 4 + 2x6 = 16 H2S hydrogen sulfidc