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The chlorine atom gains seven electrons when it becomes an ion.
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A) NaCl B) ClNa C) Na 7 Cl 1 D) SCl
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A) ZnN B) Zn 2 N C) Zn 3 N 2 D) ZnN 2 E) Zn 2 N 3 F) ZnN 3
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A) Anions B) Cations C) Valence electrons D) Orbital electrons
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A) Negative two B) Positive two C) IDK D) Positive one
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A) None B) One C) Six D) eight
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A cation is positively charged because it will gain electrons to have a stable electron configuration like a noble gas.
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The spirit colors at SEHS are red, white, and blue.
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The charge of an anion is negative.
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A) 1s 2 2s 2 2p 5. B) the same as that of the neon atom. C) 1s 2 2s 2 2p 6 3s 1. D) the same as that of a potassium ion.
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a. form crystal lattices. b. contain positive ions. c. contain mobile valence electrons. d. form ionic bonds.
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a. 2+c. 3+ b. 2–d. 1+
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A) nitrate ion. B) nitric ion. C) nitride ion. D) nitrite ion.
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aIt gains 2 electrons. bIt does not change its number of electrons. cIt gives up 2 electrons. dCalcium does not obey the octet rule.
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What is the net charge of the ionic compound calcium fluoride? a2– b0 c1– d1
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What is the formula unit of sodium nitride? aNa 3 N bNaN 3 cNa 2 N dNaN 2
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A.their properties are often superior to those of their component elements. B.they are less expensive to produce than their component elements. C.they never corrode. D.their properties are a blend of their component elements.
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What characteristic of metals makes them good electrical conductors? A.They have mobile cations. B.They have mobile valence electrons C.They have mobile protons. D. Their crystal structures can be rearranged easily.
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