Hriday0102
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dainvincible1
If you know the atomic number of the elements properly then you can take out the valency also...for example ..alluminium has atomic number 13 so ...the electronic configuaration of Al is 2,8,3 ...as the outer most shell has 3 electrons the valancey is 3
Answers & Comments
1 0 1 2 3 4 3 2 1 0 1 2 3 4 3 2 1 0 ............
and continue the series according to the atomic number sequence and in this pattern.
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