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Periodic Table

2 bytes removed, 19:14, 30 September 2018

→‎Trends within groups

*[[Group 0]]: The [[Noble Gases]] are all inert (unreactive).

: The [[Physical Property|physical properties]] of [[element]]s within a [[group]] are similar. However, the property changes gradually as you move down the [[group]].

===Periods===

NRJC

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