MLM1218 MLM1218
  • 25-11-2020
  • Chemistry
contestada

how do you determine number of valence electrons an element has

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zaqjosh
zaqjosh zaqjosh
  • 30-11-2020

Answer:the first column has one valance electron the second has 2 and so on.

The only exception is helium that has 2.

Explanation:

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