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It is known fact that most of the people would prefer to take professional haircut cleaning services for their residential and commercial premises because it helps them to enjoy clean and fresh air for a long span of time. 302 more words
In order to write the Na electron configuration, we first need to know the number of electrons in the Na atom (there are 11 electrons). When we write the configuration we’ll put all 11 electrons in orbitals around the nucleus of the Sodium atom. 90 more words