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| Can contain two electrons with paired spins and is often associtated with a specific region of an atom. |
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An energy substate of an atom within a level that designates teh size and shape of an atom.
Indicated by quantum number (l)
Indicated by s, p, d and f in electron configurations |
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| The major energy levels of an atom |
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| The electrons in an atoms outermost orbitals. |
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| Generally gasses or dull, brittle solids |
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| The ability or inability of a substance to combine with or change into one or more new substances. |
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| The lowest allowable energy state of an atom |
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| Group 1A elements (excluding H). |
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| A horizontal row of elements in the modern periodic table |
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| Used by JJ Thompson to discover the electron |
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| Has physical and chemical properties of both metals and non metals. |
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| A praticle of radiation with no mass that carries energy. Example: light |
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| A subatomic particle in an atom's nucleus that has a positive charge |
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| A vertical column of elements in the periodic table. |
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Definition
| A vertical column of elements in the periodic table. |
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| A vertical column of eleemnts |
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| A highly reactive group 7A (also called group 17) element. |
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| Equal to the number of protons in an atom |
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| Observed or changed with out changing the sample's composition. |
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| Radiowaves, microwaves, IR, light, UV, x-rays, gamma rays |
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Definition
| an element's symbol surrounded by dots representing the atoms S and P valence electrons. |
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| A neutral subatomic particle in an atom's nucleus |
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| Atoms lose, gain or share electrons in order to have 8 valence electrons |
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| The arrangement of electrons in an atom |
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