8. Based on what you know about the patterns of elements as you move down a period on the Periodic Table, make a predictien about why phosphorus behaves differently from nitrogen.

4. Lewis dot structures are good tools for showing the arrangement of valence electrons in a molecule. They don't however convey correct information about the shape of a molecule. A student described the shapes of the molecules shown below. Both are incorrect. Write an explanation for this student explaining what he did wrong and giving the correct shape of each molecule based on VSEPR theory. Lewis Structure Student identified molecule geometry as... Н—О—H Linear WATER H H:C:H Square planar H МЕТHANE

1. Match the type of bond to the description     2. Which of the following statements are true of metallic bonds?

Draw out Lewis Structures for CO2 and H2O.Using VSEPR Theory make models to represent the two molecules [you do not have to showdouble bonds in your model].From your answer predict the shape of CS2 and H2S. Looking at the Periodic Table predict which of the following molecules will have the sameshape. Using VSEPR theory determine what that shape will be.NCl3 PF3 AlCl3 BrF3

Consider the following Lewis symbols for elements X and Y: X. and. You may want to reference. (Pages 185-188) Section 6.5 while completing this problem. -- -- Q Search Part F What would be the formula of a compound of Y and sulfur if one atom of Y formed a disulfide? Express your answer as a chemical formula. 4 ΑΣΦ 3 DA chemical reaction does not occur for this question. Submit Request Answer Part G Complete previous part(s) Provide Feedback J a ? Review | Constants | Periodic Table Next > 4:49 AM 2/16/2023

Carbon monoxide (CO) contains C-O bonds.  Which if the following statements are true about the bonding electrons in this molecule?   a.) The bonding electrons will spend more time around the C atom as it needs an octet of electrons more than the O atom b.) The bonding electrons will spend more time around the O atom as it attracts the electrons more strongly c.) The bonding electrons will be shared equally between C and O atoms d.) The bonding electrons will spend more time around the C atom as it attracts the electrons more strongly

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WORKSHEET: Chemical Bonding – lonic & Covalent! REMEMBER... lonic Bond between a Metal and Non-Metal (M + NM) (NM + NM) Covalent Bond between a Non-Metal and Non-Metal PART 1: Determine if the elements in the following compounds are metals or non-metals. Describe the type of bonding that occurs in the compound. Compound Element 1 Element 2 Bond Type (metal or non-metal?) N = non-metal (metal or non-metal?) O = non-metal NO2 covalent NaCl SO2 Pl3 MgBr2 Сао H20 K20 AIF3 O2 CuCl2 NO2 CO2 HF Rb2S NBR3 Fe203 CI4

Writing Lewis Structures Many Lewis structures can be drawn by inspection but a system helps to draw the more complex ones. One approach is too : 1. Draw a skeleton of the major (non-hydrogen) atoms with single bonds ( lines) between each one. Several general considerations will help produce a valid skeletal diagram. normal covalency number or number of bonds that each atom forms. Consider the For the major atoms these are : Element Bond(s) HYDROGEN 1 BORON 3 ALUMINUM 3 CARBON | 4 NITROGEN 3 OXYGEN 2 HALOGENS 1 Also note that hydrogen, boron, aluminum and the halogens seldom form multiple bond.