Electron configuration question?
2017-03-29 1:57 pm
When you are doing the noble gas short hand configuration how do you which noble gas the element corresponds to? For example how to you know he element Mo does not go with [Kr] instead of [Xe]
回答 (1)
2017-03-29 2:39 pm
✔ 最佳答案
When writing the noble gas short hand configuration for an element in Period n, it corresponds to the noble gas in Period (n - 1).For example, Mo is an element in Period 5, and thus it corresponds to the noble as in Period 4, i.e. [Kr].
One more example, W is an element in Period 6, and thus it corresponds to the noble gas in Period 5, i.e. [Xe].
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