gr6ay9ahsuhMegakgoin gr6ay9ahsuhMegakgoin
  • 02-02-2017
  • Chemistry
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How to determine how many valence electrons an element has?

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amyseal
amyseal amyseal
  • 02-02-2017
Usually (ignoring transition metals, as they kinda get trickier), the element's valency can be found out by its group (column) number. Usually, we ignore the transition metal block while counting these columns, so Aluminium is in group 3, for example. Since Aluminium is in group 3, it has 3 valence electrons.
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