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CSE 110 EXAM 2 COMPREHENSIVE EXAMINATION TEST 2026 FULL QUESTIONS AND CORRECT ANSWERS

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CSE 110 EXAM 2 COMPREHENSIVE EXAMINATION TEST 2026 FULL QUESTIONS AND CORRECT ANSWERS

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CSE 110 EXAM 2 COMPREHENSIVE
EXAMINATION TEST 2026 FULL QUESTIONS
AND CORRECT ANSWERS


◉What is the electron affinity trend down a group? Answer: Less
negative


◉Which elements have the highest electron affinity? Answer:
Halogens (Group 17)


◉What is electronegativity? Answer: Ability of an atom to attract
electrons in a bond


◉What is the electronegativity trend across a period? Answer:
Increases


◉What is the electronegativity trend down a group? Answer:
Decreases


◉What is the most electronegative element? Answer: Fluorine (F)

, ◉What determines bond type? Answer: Electronegativity difference
(ΔEN)


◉What is the formula for electronegativity difference? Answer: ΔEN
= EN1 - EN2


◉What are the bond type ranges? Answer: 0-0.4 nonpolar covalent,
0.5-1.9 polar covalent, ≥2 ionic


◉How do ionic bonds form? Answer: Electron transfer from metal
to nonmetal


◉What ions form ionic bonds? Answer: Cations (+) metals and
Anions (−) nonmetals


◉Why are ionic compounds strong? Answer: Strong electrostatic
attraction between opposite charges


◉What structure do ionic compounds form? Answer: Crystal lattice


◉What is lattice energy? Answer: Energy released when gaseous
ions form a solid

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