DBA 3 AOSDJC ASJDC LASJDC LASKJDCLKASJDCLK JASDL CLAS DJCLK ASD CJ ALSKD CLKAJASDC PDF

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SDUCLKA SJDC LASK JDCLKAJ DCL KAJSDLC JASLD CJ;LA JSDKL;C AJS;DLJ CLAKS DJCLA JDLC JA;LDC JALD JCAL DJCA LSDCA SDLCKJALK SDJCLA DJC LAKSDJ CLAKS DJCLAKS DJCLA KSDJC ALSDCJLAKSDJ CL KASJDC LKASDJCLAKSD JC ASDJC ASDCLA SDJC...

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1. How many valence electrons are in the element gallium? Explain how you determined the number. -3 valance electrons. I know this because gallium has 3 electrons in its outer energy level.

2. What are the factors that contribute to ionic bonding? - Lattice energy can separate or put together ions to form an ionic bond.

3. What are the types of covalent bonds? How do you determine the type of covalent bond two elements can make? -single bonds and double bonds. The number of pairs of electrons that are shared between two atoms is what determines the type of the covalent bond formed. 4. How do you determine the type of bond two elements will form? - The best way would be to compare the electronegativities of the elements. Then look at the trends like the difference in electronegativities. 5. What determines the polarity of molecules? Identify whether the following molecules are polar or non-polar and explain your reasoning. a. CH4 non-polar because it has a symmetric tetrahedral geometrical shape with four identical C-H bonds. Therefore making it non-polar. b. HCl polar because the chlorine has more electronegative than hydrogen which attracts the electron pair to itself therefore causing a gain a partial negative charge and hydrogen gains a partial positive charge c. CO2

non-polar because the dipoles cancel the two polar bonds out

5. Identify the four types of intermolecular forces and rank them in strength from strongest to weakest. ion-dipole>hydrogen bonding>dipole-dipole> Van der Waals 7. Carbon can form millions of compounds. Explain how this is possible. - The Carbon atom is able to form four chemical bonds to other atoms because the carbon atom has the perfect small size to fit in and attach to parts of very large molecules....