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| an element named after Dimitri Mendeleev |
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| laws states repeating chemical/physical properties of element when it is changed |
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| horizontal row of elements in periodic table |
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| vertical column of elements in periodic table. they also share chemical properties |
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| atoms outermost orbitals that are not filled |
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| atom, radical or molecule that has gain/lost electrons and has negative/positive charge |
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| ions of fluorine which have 1- charge |
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| element that is shiny /conducts heats and electricity well |
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| element that conducts heats and electricity poorly |
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| element/compound conducts electric current better than insulator but not as well as conductor |
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| groups in periodic table are categorized as being members of a unit |
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| soft, shiney, reacts violently with water. is in group 1 of periodic table |
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| harder, denser, stronger, higher melting point than alkai metals. in group 2 of periodic table |
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| metals taht can use the inner shell before using the outer shell to bond |
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| nuclei of atom are continually decaying to produce different elements |
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| dont conduct heat/electricity well |
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| intermidiate properties between metals and non metals |
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