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Feb 2 HW-solutions - chauhan(mmc2762 Feb 2 HW sparks(51150...

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chauhan (mmc2762) – Feb 2 HW – sparks – (51150) 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page – fnd all choices be±ore answering. Be±ore next class, preview sections 13.1, 13.14, and 13.5. Don’t ±orget that there is also an entire extra practice worksheet on periodic trends on Blackboard. 001 10.0 points Which o± the ±ollowing would be expected to have chemical properties similar to those o± sul±ur? 1. F 2. Mg 3. P 4. Ar 5. Se correct 6. Si Explanation: 002 10.0 points Which o± the ±ollowing atoms has the largest radius? 1. H 2. Na correct 3. P 4. Ar 5. Al 6. F Explanation: Atomic radii increase ±rom le±t to right and ±rom top to bottom on the Periodic Table. 003 10.0 points List in order o± increasing atomic size (small- est to largest) the atoms whose atomic num- bers are 6, 32, 7. 1. 6, 7, 32 2. 32, 6, 7 3. 32, 7, 6 4. 7, 6, 32 correct Explanation: Element Electronic confguration 6 2 · 4 [He] ↑↓ 2 s 2 p Group 4, Period 2 Valence electrons in period 2 7 2 · 5 [He] ↑↓ 2 s 2 p Group 5, Period 2 Valence electrons in period 2 32 2 · 8 · 18 · 4 [Ar] ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ 4 s 3 d 4 p Group 4, Period 4 Valence electrons in period 4 Period 4 is ±arther ±rom the nucleus than period 2.
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Feb 2 HW-solutions - chauhan(mmc2762 Feb 2 HW sparks(51150...

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