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Physical Science Elements and their Properties
Ch 19 Mouse Mischief Physical Science Elements and their Properties
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At room temperature, most metals are ____.
gases liquids radioactive solids
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condensation evaporation ionization sublimation
The process by which solid iodine particles change directly to gas without first becoming a liquid is called ____. condensation evaporation ionization sublimation
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Elements that form salts by combining with metals are ____.
allotropes fluorides ionics halogens
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metals metalloids noble gases nonmetals
Substances that conduct an electric current only under certain conditions are most likely to be ____. metals metalloids noble gases nonmetals
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allotropes carbons graphites halogens
Different forms of the same element that have different properties because of different atom arrangements are called ____. allotropes carbons graphites halogens
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diamond graphite sand silicon
An allotrope of carbon that is soft and can be used as a lubricant is ____. diamond graphite sand silicon
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diamond graphite quartz silicon
An allotrope of carbon that is hard and is often used in jewelry is ____. diamond graphite quartz silicon
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Hydrogen is grouped with the alkali metals because it ____.
does not readily form compounds has one electron in its outer energy level is a gas is a metal
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actinide series alkali metals halogens lanthanide series
A chemical family whose members exist as reactive diatomic molecules in the gaseous phase is the ____. actinide series alkali metals halogens lanthanide series
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actinide series alkali metals halogens lanthanide series
A chemical family whose members exist as reactive diatomic molecules in the gaseous phase is the ____. actinide series alkali metals halogens lanthanide series
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gaining one electron losing one electrons losing two electrons
When hydrogen reacts with the active metals, it forms a chemical bond by ____. gaining one electron losing one electrons losing two electrons sharing electrons
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actinides alkaline earth metals transition elements halogens
The elements in Groups 3 through 12 of the periodic table are the ____. actinides alkaline earth metals transition elements halogens
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actinides alkaline earth metals alkali metals halogens
A family of elements that has two electrons in its outer energy level is the ____. actinides alkaline earth metals alkali metals halogens
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Metals can be used as wire because they are ____.
alloys ductile metallic shiny
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covalent hydrogen metallic radioactive
Elements in which the outer electrons are NOT held tightly are most likely to form ____ bonds. covalent hydrogen metallic radioactive
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Bromine is the only halogen and nonmetal that is normally a ____.
gas liquid semiconductor solid
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The only metal that is a liquid at room temperature is ____.
copper mercury silver sodium
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A synthetic element that is used in smoke detectors is ____.
aluminum americium sodium technetium
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All synthetic elements are ____.
liquids needed by human body radioactive useful in making plastics
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Cobalt, iron, and nickel are known as the ____ triad.
steel
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Three transition elements in Group 12 of the periodic table are ____.
copper, silver, and gold iron, nickel, and cobalt mercury, zinc, and cadmium neon, helium, and xenon
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halogen lanthanide transition element transuranium element
Any element with an atomic number greater than that of uranium is a(n) ____. halogen lanthanide transition element transuranium element
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The noble gases are in ____.
Group 18 Group 1 Group 13 Group 2
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liquids metals metalloids radioactive
Elements that lie along the stair-step line of the periodic table are ____. liquids metals metalloids radioactive
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The appearance of solid metals can be described as ____.
dull glassy powdery shiny
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noble gases alkaline earth metals alkali metals transition elements
A family of elements that contains the most reactive metals is the ____. noble gases alkaline earth metals alkali metals transition elements
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Radioactive elements comprise a majority of the ____.
actinides halogens lanthanides noble gases
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