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Last updated 4:14 PM on 7/26/26
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7 Terms
1
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atomic number
The number of protons in an atom. Sometimes called the proton number.
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electron arrangement
A shorthand way of writing the number of electrons in an atoms electrons shell
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element
A substance made up of only one type of atom.
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group
a column in the periodic table containing elements with the same number of outer shell electrons and similar chemical properties
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period
A row in the periodic table containing elements with the same number of full electron shells
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periodic table
A table that lists all the elements in order of increasing atomic, number, arranged into groups and periods.
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property
Any characteristic of an element.