Ca Ca Ca Cl Cl Cl Cl Cl Cl Cl Cl Cl

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Presentation transcript:

Ca Ca Ca Cl Cl Cl Cl Cl Cl Cl Cl Cl #3) Draw dot structure of Ca (show 2 valence electrons as dots.) Method 1, using clockwise rule, fill the top 2 electrons first, then add an electron to the sides and bottom one at a time clockwise. Method two: Memorize group 2 has a pair of dots. Ca Ca Ca #4) Draw dot structure of Cl (show 7 valence electrons as dots) Method 1, using clockwise rule, fill the top 2 electrons first, then add an electron to the sides and bottom one at a time clockwise. Method two: Memorize group 17 has a 3 pair of dots and a single Cl Cl Cl Cl Cl Cl Cl Cl Cl

[ ] [ ] Ca Ca+2 + 2e- - Cl Cl 2e- + - Cl Cl Ca Ca+2 + - Cl Cl 2 2 #5) Draw dot structure of Calcium Chloride, (ionic compound) Electronegativity of Ca is 1.0 and Cl is 3,2 therefore the ionic character is 2,2, IONIC Ca Ca+2 + 2e- - Cl Cl 2 2 2e- + [ ] - Cl Cl Ca Ca+2 + [ ] - Cl Cl

[ ] Ca Ca+2 + 2e- - Ol O 2e- + -2 Ca O Ca+2 + O 2 2 Electronegativity of Ca is 1.0 and Cl is 3,2 therefore the ionic character is 2,2, IONIC Ca Ca+2 + 2e- - Ol O 2 2 2e- + [ ] -2 Ca O Ca+2 + O