Homework - fernandez (jf23742) Homework 4 Brodbelt (53765)...

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fernandez (jf23742) – Homework 4 – Brodbelt – (53765) 1 This print-out should have 20 questions. Multiple-choice questions may continue on the next column or page – Fnd all choices before answering. Homework 4: Lewis dot structures, polar- ity, ionic and covalent bonds 001 10.0 points What characteristics do atoms of carbon-12, carbon-13, and carbon-14 have in common? 1. same number of neutrons and electrons 2. same number of electrons 3. same number of neutrons 4. same number of protons and electrons 5. same mass 6. same number of protons 7. same number of neutrons and protons 002 10.0 points The chemistry of an element is largely deter- mined by 1. its relative abundance. 2. its number of total electrons. 3. its mass. 4. its core electrons. 5. its valence electrons. 003 10.0 points The oxygen 1 - anion O - has how many total electrons and how many valence electrons? 1. 8; 6 2. 9; 8 3. 9; 7 4. 9; 9 5. 8; 7 6. 7; 6 7. 7; 5 8. 8; 8 9. 8; 9 004 10.0 points Describe the Lewis dot structure for Cl + . 1. one pair of electrons, two lone electrons 2. one pair of electrons, three lone electrons 3. two pairs of electrons, two lone electrons 4. two pairs of electrons, three lone elec- trons 5. three pairs of electrons 6. two pairs of electrons, one lone electron 7. three pairs of electrons, one lone electron 005 10.0 points How many valence electrons are in a silicon atom?
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Homework - fernandez (jf23742) Homework 4 Brodbelt (53765)...

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