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PracticeSheet6Br-DrAnswersBT+REVISED+ Chris

PracticeSheet6Br-DrAnswersBT+REVISED+ Chris - Practice...

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Practice Sheet 6 Key BLC & DLC Answers 6B.1 a) O > P > Mg > Ca b) P > As > Ge > In 6B.2 a) Metal d) Metalloid b) Nonmetal e) Nonmetal c) Metal 6B.3 a) Bromide ion b) Sn 4+ e) Nitride ion c) Lithium ion f) Al 3+ d) Ba 2+ g) Pr 3+ 6B.4 a) Bromine—gains one electron. b) Potassium—loses one electron. c) Xenon—already obeys the octet rule. d) Phosphorus—gains three electrons. 6D.1 a) LiCl – Lithium Chloride b) MgF 2 – Magnesium Fluoride c) CaO – Calcium Oxide d) Al 2 O 3 – Aluminum Oxide 6D.2 a) NaNO 3 d) Li 3 PO 4 g) Al(ClO 4 ) 3 b) K 2 SO 4 e) NH 4 HSO 4 h) Al 2 (SO 4 ) 3 c) Mg(ClO 4 ) 2 f) K 3 PO 4 6D.3 a) Ca < Mg < P < O b) Sn < Ge < As < P 6D.4 a) Cs > Rb > Al > S > Ne b) Cs > Cs + > Cl - > Cl 6D.5 As you move right across a given row in the periodic table, protons and electrons are added at the same rate (one of each for every new element). Thus, two things happen: first, the positive charge of the nucleus increases as each new proton is added; second, the orbitals of the outermost shell are filled with electrons but NO NEW SUBSHELLS OR ORBITALS ARE ADDED WITHIN THE GIVEN SHELL.
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