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27 Cards in this Set
- Front
- Back
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Noble gases
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Inert (Helium, neon, argon, krypton, xenon, radon)
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Halogens
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Form part of group VIIA and exist in free state normally as diatomic molecules (flourine, chlorine, bromine, iodine, astatine)
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Lightest element
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Hydrogen - Atomic weight of 1.0079 - only nonmetal in IA group
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Other nonmetals
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Nitrogen, oxygen & sulfur
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Make up most of the atmosphere
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Nitrogen (78%), oxygen (21%) - occur naturally as gases
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Sulphur
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Occurs naturally as a brittle solid, is a constituent of proteins, used extensively in chemical & paper industries
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Akali metals
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Lithium, sodium, potassium, rubidium, cesium & frankium - group of univalent, mostly basic metlas of group IA
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Alkaline earth metals
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Magnesium, calcium, strontium, barium & radium - group of bivalent, strongly basic metals of group IIA
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Transition metals
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29 metalic elements (chromium, iron, nickel, copper, silver, gold) - have valence electrons in two shells instead of one
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Mercury (Hg)
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Only transition metal that exists naturally as a liquid
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Metalloids
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Boron, carbon, silicon, germanium, arsenic, antimony, polonium, astatine - elements intermediate in properties between typical metals and nonmetals
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"Other" metals
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Aluminium, gallium, indium, tin, thallium, lead & bismuth - ductile & malliable, not the same as transition metals - do not exhibit variable oxidation states & valence electrons are only present in outer shell
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Rare earth metals
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30 elements - uranium (U) - occurs naturally, einsteinium (ES) - does not
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Hydrogen symbol
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H
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Arsenic symbol
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As
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Mercury symbol
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Hg
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Potassium symbol
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K
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Radium symbol
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Ra
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Silver symbol
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Ag
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Sodium symbol
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Na
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Tin symbol
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Sn
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Tungsten symbol
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W
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Copper symbol
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Cu
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Gold symbol
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Au
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Iron symbol
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Fe
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Lead symbol
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Pb
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2 man-made elements
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Californium (Cf) & Einsteinium (Es)
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