ChemComm Unit 2A Question Preview (ID: 34971)


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a property that can be observed or measured without changing the identity of the sample of matter
a) physical property
b) chemical property
c) atomic number
d) group or family

a change in matter in which the identity of the material involved does not change
a) physical change
b) chemical change
c) isotopes
d) metalloids

a property only observed or measured by changing the chemical identity of a sample of matter
a) chemical property
b) physical property
c) isotopes
d) atomic number

an interaction of matter that results in the formation of one or more new substances
a) chemical change
b) physical change
c) atomic mass
d) nonmetal

a chemical reaction with oxygen gas that produces thermal energy and light; burning
a) combustion
b) luster
c) malleable
d) brittle

a property of a material that permits it to be stretched into a wire without breaking
a) ductile
b) luster
c) brittle
d) combustion

the reflection of light from the surface of a material
a) luster
b) ductile
c) combustion
d) brittle

a material possessing properties such as luster, ductility, conductivity, and malleability
a) metal
b) nonmetal
c) metalloids
d) isotopes

a material possessing properties such as brittleness, lack of luster, and nonconductivity; nonmetals are often insulators
a) nonmetal
b) metalloids
c) metal
d) ductile

materials with properties intermediate between those of metals and nonmetals
a) metalloids
b) halogen family
c) isotopes
d) alkali metal family

a material that allows electricity to flow through it
a) conductor
b) halogen family
c) isotopes
d) brittle

a material possessing properties such as brittleness, lack of luster, and nonconductivity
a) nonconductor
b) metal
c) metalloid
d) isotopes

the property of a material that permits it to be flattened without shattering
a) malleable
b) brittle
c) ductile
d) luster

a property of a material that causes it to shatter under pressure
a) brittle
b) malleable
c) ductile
d) luster

the number of protons in an atom
a) atomic number
b) isotopes
c) mass number
d) group or family

the sum of the number of protons and neutrons in the nucleus of an atom of a particular isotope
a) mass number
b) atomic number
c) isotopes
d) group or family

atoms of the same element with differing numbers of neutrons
a) isotopes
b) halogen family
c) alkali metal family
d) nonconductor

a vertical column of elements in the periodic table
a) group or family
b) isotopes
c) metalloids
d) atomic number

the group of elements consisting of lithium, sodium, potassium, rubidium, cesium, and francium
a) alkali metal family
b) halogen family
c) isotopes
d) nonmetal

the group of elements consisting of fluorine, chlorine, bromine, iodine, and astatine
a) halogen family
b) alkali metal family
c) metalloids
d) isotopes

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