how to find valence electrons
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Explanation:
the the number of electrons in the outermost shell are determined as a valence electron so the number of valence electrons is equal to the number of electrons in the outermost shell
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1
Explanation:
when occuring in an reaction you can find two different atoms reacting with each other at different ratios. the ratios are the no. of ions of the atoms reacting with each other.
so you can deduct that two ions reacting witheach other in X and Y molar quantity.
from that you can derive the valency of electrons
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