F11-1251-Exam_4A_Key

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Unformatted text preview: orner of each answer space. Multiple choice questions are worth 3 points each. You must show your work to receive any credit for problems involving calculations. All calculated answers and work must include units, and should be rounded to the appropriate number of significant figures! 88.91 1 A Free Response Instructions: Solve the following problems in the boxes provided below each question. Be sure to show all your work and units, and round your answers to the appropriate significant figures. 1. (a) Identify the following neutral atoms based on their electron configurations and rank them in increasing electronegativity: [Ar]4s23d2; [Ne]3s23p3; [Ar]4s23d104p3; [Ne]3s23p5. +1 correct elements Ti < As < P < Cl 3 +2 correct order (b) Consider the most electronegative atom above. What does high electronegativity imply about the electron affinity (EA) for this atom? Use EA to help define electronegativity. High electronegativity implies a strong electron affinity – atoms with high electronegativities +1 strong electron affinity like gaining electrons. +1 definition of electronegativity El...
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