Determining Number of Valence Electrons

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Tiffany Dong_4e
Posts: 51
Joined: Wed Sep 11, 2019 12:17 am

Determining Number of Valence Electrons

Postby Tiffany Dong_4e » Sun Oct 27, 2019 6:03 pm

Are we expected to know the number of valence electrons in transition metals? It was a homework problem, so I wanted to make sure. The problem stated to identify the number of valence electrons (including d electrons) in magnesium. If we are expected to know this, how would we determine the number?
Last edited by Tiffany Dong_4e on Sun Oct 27, 2019 8:53 pm, edited 1 time in total.

Jada Brown 2H
Posts: 91
Joined: Sat Aug 17, 2019 12:15 am

Re: Determining Number of Valence Electrons

Postby Jada Brown 2H » Sun Oct 27, 2019 6:04 pm

You can usually identify the number of valence electrons by looking at the periodic table, which will be given on exams. All you have to do is count the groups leading up to the atom. In other words, know how many electrons are in the outer shell of the electron configuration of the atom.

claudia_1h
Posts: 94
Joined: Fri Aug 09, 2019 12:16 am

Re: Determining Number of Valence Electrons

Postby claudia_1h » Sun Oct 27, 2019 6:06 pm

Magnesium is not a transition metal, it is an alkaline earth metal, so knowing how to find the number of valence electrons for transition metals is not needed for this problem.


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