HW 1 (1) - MET 143 HW 1(Due on Tuesday September 4th 2018...

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MET 143 HW # 1 (Due on Tuesday September 4 th 2018) Name: Aravind Ravishankar 1. TASK: Determine the number of valence electrons for each of the following elements (a) iron, (b) chromium, (c) titanium, (d) carbon, (e) chlorine. ANSWER: Iron- 2 Valence Electrons Chromium- 6 Valence Electrons Titanium- 4 Valence Electrons Carbon- 4 Valence Electrons Chlorine- 7 Valence Electrons 2. TASK: For part (a) label the following elements as metals or non-metals and for part (b) determine what type of primary bond will form between each combination. ANSWER: Part (a) Iron: Metal Chromium: Metal Carbon: Non Metal Chlorine: Non Metal Part (b) Fe + Cr: Metallic Bond Fe + C: Ionic Bond Cr + C: Ionic Bond C + Cl: Covalent Bond
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3. TASK : Describe the way in which electrons participate in each of the following three types of bonds. (a) Metallic bonds- An outer shell cannot be formed during electron transfer or electron sharing. (b) Covalent bonds- The two nonmetal particles share electrons instead of transferring them and both particles share outer shell electrons.
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  • Spring '19
  • NoProfessor
  • Electron, Tensile strength, Chemical bond

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