periodicity quiz, names and stuff
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| group 1A name | alkali metals
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| group 1A characteristics | low density, low melting points, good electrical conductivity, soft enough to be cut with a knife, react violently with cold water to form metal hydroxide and hydrogen gas
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| group 2A-6A name | alkaline earth metals
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| group 2A characteristics | not as reactive as 1A, harder than 1A
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| group 3A characteristics | metals and non metals, Boron: non-metal; rest are metals
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| group 4A | metals and non metals, Carbon: non-metal, Silicon and Germanium: metalloids, Tin and Lead: metals
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| group 5A | Nitrogen: gas, Phosphorus: solid non metal, Arsenic & Antimony: metalloids, Bismuth: metal
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| group 6A | Oxygen: gas, Sulfur: non metal, Selenium and Tellurium: solids also border between metal and non-metal, Polonium: radioactive trace element
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| group 7A name | Halogens
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| group 7A characteristics | non metals, Fluorine & CHlorine: gases, Bromine: dark red liquid, Iodine: purple solid, AT: rare, radioactive solid
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| Group 8 | noble gases (sometimes called inert or rare gases)
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| hydrogen | reacts with halogens readily, very explosive with oxygen and other elements
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| groups 1B-8B name | transition metals
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| groups 1B-8B characteristics | typical metals, fill d orbitals
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| Inner transition Metals | Lanthanide series (Atomic #57-70), actinide series (atomic #89-102), fill f orbitals
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| name the first group filled containing all nonmetals | halogen
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| substances with properties of both nonmetals and metals are called | metalloids
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| VERY low reactivity is the distinguishing property of which group? | noble gases
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| which thing would be a non conductor? | a nonmetal
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| what is the most likely oxidation number for any halogen atom? | 1-
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| group VIA elements form ions with what charge? | 2-
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| how valence electrons in group VII? | 7
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| what charge is associated with the ions of the elements in group 1A? | 1+
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| what charge is associated with the ions of elements in group II? | 2+
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| what charge is associated with the ions of the elements in group VII? | 1-
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| who was responsible for the development of the first periodic chart? | mendeleev
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| the modern periodic table by whom? | moseley
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| the energy required to remove an electron from an atom | ionization energy
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| the energy change associated with the addition of an electron to an atom | electron affinity
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| the tendency for an atom to attract electrons to itself when it is chemically combined with another element | electronegativity
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| one half the distance between the nuclei of two identical atoms bonded together | atomic radius
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| when elements are arranged in order of increasing atomic number, there is a periodic pattern in their chemical and physical property | periodic law
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