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Author Question: How do you know how many valence electrons an element has? (Read 609 times)

notis

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on: Sep 20, 2013
I am in Integrated Physics and Chemistry and we are learning about the elements and bonding. So could someone please explain valence electrons to me?


TI

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Reply #1 on: Sep 20, 2013
the column its in on the periodic table. for example if an element is in the third column it has 3 valence electrons. also if it has, for example, 17 valence electrons it would be in the 7th column


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