chem.Stack #201959
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| what's the amu for a proton? | 1.0073
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| whats the amu for a neutron? | 1.0087
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| what's the amu for an electron? | .00055
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| where can a proton be found in an atom? | nucleus
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| where can a neutron be found in an atom? | nucleus
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| where is an electron found in an atom? | outside the nucleus
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| 1836 electrons = ____protons | 1
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| lighting storm would be an example of ____ and _____ clashing | protons and electrons
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| metals are a ___ charge | postitive
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| nonmetals are a _____ charge | negative
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| cations are ____ charged like metals | positve
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| anions are ____ charged like non metals | negative
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| metals conduct _____ and ______ | electricity and heat
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| what has a shinny appearance, luster. ductile ( can take large pieces and make smaller) | metal
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| metals or non-metals are good insulators? | non metals
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| which metal is a liquid at room-temp? | Hg
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| which non-metal is liquid at room-temp? | Br
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| which element wants to be a non-metal and a metal? | Hydrogen
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| Group 1A are _______ metals, are base elements with high pH | alkali
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| group 2A are________ metals, are base elements with high pH | alkaline
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| Group A is called the _______ group elements | Main group
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| group 1A has ___ electrons, 2A?, 3A?, 4A?, 5A?, 6A?,7A? | 1,2,3,4,5,6,7
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| group 7A is the____ group. Also called the _____ formers. | Halogen group, salt formers
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| Group 8A is called the _____ group. | gas
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| what's the oct 8 rule? | there can not be no more atoms that 8 on the outside of the atom.
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| hat do all the elemets want to be like? | nobel gases
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| what are the 7 diatomic elements? | N, O, F, Cl, Br and H they make a 7 on the chart
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| out of N, O, F, Cl, Br, H which does not belong and why? | Br bc its a liqiud
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| what's an example of a diatomic element? | H(2)
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| what's an example of a monatomic element? | Cl
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| what are the Calcogens? what elements do they contain? | Group 6A the oxygen family. oxygen and sulfer, bc copper is made mostly of these two elements
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| what are the inner transistion elements? | Lanthanides and Actinides
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| what metal is liquid? | Mercury
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| chemical reaction occurs bc of the _____ in the atom | electrons
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| when an atom losses an electron it becomes ______ charged | positively
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| when a n atom gains an electron gains an electron is becomes _____ charged | negatively
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| first ionization energy (IE) or the ionization Potential (IP) is the ? | minimum amount of energy that it takes to gain or lose an electron
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| _______ ________ of an element is the amount of energy absorbed when the electron i s added to form an anion with a negative charge | Electron affinity
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| ____ is the friendliest of all the metals | Iron
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| ______ desolves other metals to form alloys | Mercury
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| what do dentist use to fill cavities? | Hg and Ag
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| qiuck silver= _____, has the lowest melting point, and dissolves gold | Hg
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| ______ is the softest metal | Cesium
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| ______ is the best conductor of heat | silver
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| _______ is most Malleable and ductile | Au
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| what's the lightest metal? | lithium
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| nobel and cinage metals are? | Ag, Au, C
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| synthetic elements are or are not found in nature? | are not
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| atomic number = the number of ------ and ------ | protons and electrons
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| in the Quantum Theory ----- is most massive and ----- is least massive. what moves is a form of a wave? | neutrons, electrons, electrons
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| what's avagadro's number? | 6.022x10(-) 23
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| how do you find % contribution of an element? | find the molar mass of the elements, take each element, divide it by the molar mass,& multiply it by 100
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| how would yo find .05 mols of H2SO4 (molar mass= 98.1g) | divide molar mass by .05 mols
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