Question | Answer |
most abundant elements in earths crust | silicon and oxygen |
sharing of electrons is | covalent |
a chemical element is a substance made up by atoms, all of which have the same: | number of protons |
an example of a nonferromagneisian silicate mineral is | quartz |
the ratio of a minerals weight to the weight of a equal volume of water is its | gravity |
chemical elements having 8 electrons in their outermost electron shell are the | Nobel gases |
the atomic number of an element is determined by | number of protons |
to which of the following groups do most minerals in the earths crust belong | silicates |
when an atom gains or loses an electron, it becomes: | ion |
which of the fundamental forces is not involved in the structure of an atom | gravity |
these minerals have good cleavage | carbonates |
anions are ____ charged because they have ____ electrons | negatively, gained |
after silicates, the most important rock-forming mineral is | carbonates |
lacks good cleavage | quartz |
density of minerals refers to | weight per unit volume and weight relativity to water |
the single most abundant mineral on earth | quartz |
this gem mineral is an oxide mineral of aluminum | sapphire |
which is a phyllosilicate | clay minerals |
calcite will scratch glass : true or false | true |
most gem minerals belong to this group (except for diamonds) | silicates, oxides |
bonding in minerals is mostly | ionic |
the two most abundant elements in the earths crust | oxygen, silicon |
the charged atoms that make up most crystal structures | ions |
minerals are classified on the basis of | their negatively charged atoms (anions) |
_________ are examples of sheet silicates | mica and clay minerals |
the tendency of minerals to break along smooth plans | cleavage |
most common single mineral on earth | quartz |
all minerals are crystalline means | all minerals have a orderly internal atomic structure |
these minerals are often water-soluble | halides |
cations are _________ charged because they have blank _____ electrons | positively, lost |
this gem mineral is an oxide of aluminum | ruby |
this mineral is the same as ordinary rust and is the principle ore of iron | hematite |
these minerals are among the leading contributors to acid rain | sulfides |
why is pyrite not the major ore of iron | there are other ores that are better sources of iron |
the property that causes salt to come out of salt shakers as tiny cubes | cleavage |
which is not a pyhllosilicate | pyroxene |
you can identify minerals by seeing if they scratch glass : True or False | true |
most minerals belong to the following groups | sulfides,oxides |
minerals are solids processing an orderly internal arrangement of atoms meaning that they are | crystalline |
the silicon atom has a positive charge of 4, and oxygen has a negative charge of 2. The ion group (SiO4) has a: | negative charge of 4 |
calcite and dolomite are | carbonate minerals |
hardness refers to | resistance to scratch |
the property that makes gold panning possible | density |
dense, metallic in luster, often have cubic crystals | sulfides |
have good cleavage and fizz in acid | carbonates |
light in color and weight, good cleavage, and often water-soluble | halides |
mica | sheet silicates |
quartz | can scratch glass |
calcite | dissolves in acid |
oceans cover approximately how much of the earth | 70 |
the continents cover approximately how much of the earth | 30 |
energy that drives ocean currents | wind |
the carioles effect | is caused by earths rotation |
the daily tidal wave is least during the _____ tide | neap |
essay question: list 5 things that cause continental drift | gps, puzzle pieces, mountains, ring of fire, fossils |