Physical Science Chapter 6 – Flashcards

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question
Typically, atoms gain or lose electrons to achieve.. .A) an example of energy. B)ionization. C) a stable electron configuration. D) vaporization
answer
C
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In an electron dot diagram, the symbol for an element is used to represent... A) the nucleus B) the nucleus and all electrons. C) the nucleous and valance elections D) the nucleous and all non-valent electrons.
answer
D
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Study the electron dot diagrams for lithium, carbon, flourine, and neon in figure 6-1. Choose the statement that correctly identifies the most stable of the elements. A) lithium is the most stable element because is has to lose only one electron to achieve a stable configuration. B) carbon is the most stable element because it can form four bonds. C) Fluorine is the most stable element because it has to gain only one electron to achieve a stable co figuration. D) Neon is the most stable element because its highest occupied energy level is filled.
answer
D
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The formation of an ionic bond involves the... A) transfer of electrons. B) transfer or neutrons C) transfer of protons. D) Sharing of electrons.
answer
A
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In the compound MgCl2, the subscript 2 indicates that... A) there are two magnesium ions for each ion of chlorine. B) the chloride is twice the size of the magnesium ion. C) magnesium and chlorine for a double covalent bond. D) there are two chloride ions for each magnesium ion.
answer
D
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When two atoms of the same nonmetal react, they often form a (an) ... A) ionic bond B) polyatomic ion C) diatomic molecule D) polar molecule
answer
C
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Which of the following formulas represents a compound whose molecules contain a triple bond? A) N=N B) O=O=O C) O3 D) SO3
answer
A
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In a polar covalent bond,.. A) electrons are shared equally btw two atoms B) a cation is bonded to an anion. C) electrons are transferred btw atoms D) electrons are not shared equally between atoms
answer
D
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The elements most likely to form more than one type of ion are the... A) transition metals B) alkali metals C) halogens D) alkaline earth metals.
answer
A
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Flourine,F, forms a binary ionic compound with lithium, Li. What is the name of this compound? A) flourine B) lithium fluoride C) lithium flourine D) fluorine lithium
answer
B
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The name iron(||) indicates that a comound contains... A) iron ions with an 11+ charge. B) iron ions with a 2+ charge. C) iron ions with a negative charge. D) tow types of iron ions.
answer
B
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Beryllium, Be, and chlorine, Cl, form a binary ionic compound with one-to-two ratio of beryllium ions to chloride ions. The formula for the compound is ... A) Be2 Cl B) 2BeCl C) BeCl2 D) Be 2 Cl2.
answer
C
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In the name of carbon dioxide, the prefix of the second word indicates that a molecule of carbon dioxide contains... A) two carbon atoms B) two oxygen atoms C) a polyatomic ion D) an ionic bond.
answer
B
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Which phrase best describes a metallic bond? A) a bond that is formed by a metal. B) the attraction btw a metal anion and a shared pool of electrons C) a bond that forms btw a metal and a nonmetal D) the attraction between a metal cation and a shared pool of electrons.
answer
D
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Metallic bonding is similar to ionic bonding because... A) electrons are transferred between atoms. B) electrons are shared btw atoms. C) the lattice that forms contains anions and cations. D) there is an attraction between positively charged and negatively charged particles.
answer
D
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An alloy that contains mainly iron and carbon is... A) sterling silver B) bronze C) brass D) stainless steel
answer
D
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