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ch 1`9
Question | Answer |
---|---|
heated and electricity , reflect light well | metals |
can be hammerd or rolled into sheets | melleable |
can be drawn into wire | ductile |
it conbines with nonmetals to lose electrons | Ionic bonds |
positively chraged metallic ions are surrounded by a cloud of electrons | metallic bonding |
metals softer and more reactive than other metals | Alkali metals |
human boddy _ in bones | calcium |
radium fromerly used to treat cancer | Uranium |
they often occur in nature as uncombined elements | Transition elements |
typically form colord found in rubies and emeralds | Chromium |
most widely used of all metals and main ingridient, second most widely use | Iron |
frist most widely used of all metals | Aluminum |
used to coat other metals | Nickel |
copper, silver, gold _ metals since once were used in coins | Coinage |
Used electric wiring because it is a superior electricity conductor | Copper |
Used in photographic film and paper; jewelry | silver |
zinc,cadmium mercury group_ on periodict table | 12 |
metals seem disconnected from the rest of the periodict tables | Inner transition metals |
the- in cludes Lathanum, cerium, praseody mium, amarium, europium, Gadolinium, and terbium | Lanthanide |
the_ all are radioactive and unstable, | the Actinides |
is the best known actinides | Uranium |
ionic and covalent bonds, have some metallic and some non metallic properties | metalloids |
named for the frist element in group 13 | boron |
found in coal, oil, natural gas, and foods | Carbon |
same element with different melecular structures | allotrope |
found in sand, rock , and oil, also used in semiconductors | silicon |
conduct elecicity under certain conditions | semiconductors |
electrically charged atoms | Ions |
have 1, 2 or 3 valance electrons lose e- | metals |
tend to have 5, 6, or 7 valence electrons, gain e- | nonmetals |
electro estatic force between oppositevely Charged Ions | Ionic Band |
hold things together | metallic properties |
Extremely reactive because loses 1 electron | Alkali Metals |
second most abondat metal | iron |
most abondant in earth | Aluminum |
most reactive | halogen |
most radioactive element | Fluorine |
allotrope | different molecular structures of the same elments |
metals_heat and electricity | conduct |
can be drawn into wire. | ductile |
found in plant Chlorophy | Carbon |
Faund in statues and countertops | Calcium |
Force of attraction between oppositely charged ions. | Ionic Bond |
are the iron triad | Iron, Nickel, Cobalt |
Are the coinage metals | gold, silver, copper |
Superior electrical conductivity | Copper |
used in photographic film | Silver |
only metal liquid at room temperature | ides |
group that are all radioactive, uranium, is the best known | actinudes |
makes up 65% of the human body | Hydrogen |
2 atoms of the element bonded covalently | diaton molecules |
rolled into sheets | malleable |
tend to have 5,7, or 7 valance e- form negative ions | nonmetals |
Greek word meaning water former | Hydrogen |
greek word meaning salt former | halogen |
most reactive nonmetal | flourine |
disinfectant and bleach | Chlorine |
hormone regulation | Idime |
most aboundant metal in earth crust | Aluminum |
same elmennt with different molecules Structure | Allotropes |
toxic, no longer usd in paint | lead |
Elements with more than 92 protons | Transuranium |
Substance that conducts electricity under certain conditions | semicunductor |
not naturally occurring | synthetic |
state of all elments in group 18 | gas |
gases with full outer energy levels | noble |