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Chemistry chapter 6 Test

QuestionAnswer
In a periodic table that included electron dot diagrams, in which column would the diagrams contain more dots- Group 2 (the alkaline metals) or Group6A (the oxygen family)? Group 6A
In an electron dot diagram of potassium, there is one dot. In an electron dot diagram of silicon, there are four dots. Which element would you expect to be more reactive? Potassium because one dot is more reactive.
Study the electron dot diagrams in figure 6-1. Which of the elements are most likely to react and form a compound? What type of compound are they likely to form? neon because it is the most stable element because its highest occupied energy level is filled.
Sodium, an alkali metal, and chlorine, a halogen, are both in Period 3 of the periodic table. Which element has a higher ionization energy? Explain your answer. Chlorine
In the binary ionic compound lithium iodide, Lil, which element forms anions? Potassium
Are covalent bonds more likely to be found in compounds containing both metals and nonmetals or compounds containing only nonmetals? Only nonmetals
Suppose a covalent compound has a relatively high boiling point compared to molecules with a similar mass. Are the molecules in the compound likely to be polar or nonpolar? Polar
The molecules in compound AB are strongly polar, while the molecules in compound XY are non-polar. Which substance probably has the higher boiling point? AB
In potassium bromide, KBr, which element forms anions? Bromine
In sodium chloride, NaCl, are the cations sodium ions or chloride ions? Sodium ions
How do you know that magnesium is the more metallic element in the compound magnesium oxide. MgO? Magnesium is a metal, and metals comes first.
The structure in a metal lattice can be described as cations surrounded bt a pool of shared electrons. What two properties of metals can be explained by this structure? ductility and malleability
Why are metals good conductors of heat? free moving atoms in metals carry both heat and electric current
Which material is most likley to shatter if you strike it with a hammer-sodium chloride or bronze? Sodium Chloride
Mixing magnesium and aluminum together produces an excellent lightweight material from which to make airplane parts. What is this type of mixture called? Alloy
Fluorine is the most reactive nonmetal. To Fluorine's immediate right in the periodic table is neon, a noble gas that does not form chemical bonds. Explain this contrast in reactivity in terms of atomic structure. the electron configuration of an element determines its reactivity.
How is an electron dot diagram a useful model for focusing on the chemical properties of an element? An electron dot diagram shows the number of valence electrons.
Water droplets tend to have a spherical, round shape. Explain this fact in terms of the polar nature of water molecules? Because water molecules are polar, there are strong attractions between water molecules.
How does the ability of metals such as copper and alloys such as steel to be drawn into wires affect the possible uses of these materials? If these metals can be drawn into wires, then they can be used to make long cables
Created by: Deja Warren
 

 



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