How can we calculate the total number of valence electrons from its group and period table values? - Quora
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Valence Electrons of all the elements in the Periodic Table | Dynamic Interactive Periodic Table | SchoolMyKids
![Counting valence electrons for main group elements | Periodic table | Chemistry | Khan Academy - YouTube Counting valence electrons for main group elements | Periodic table | Chemistry | Khan Academy - YouTube](https://i.ytimg.com/vi/akm5H2JsccI/maxresdefault.jpg)
Counting valence electrons for main group elements | Periodic table | Chemistry | Khan Academy - YouTube
![Graphical Abstract: The last valence electrons, left on an ion, are... | Download Scientific Diagram Graphical Abstract: The last valence electrons, left on an ion, are... | Download Scientific Diagram](https://www.researchgate.net/publication/47521056/figure/fig2/AS:601717200666664@1520471968673/Graphical-Abstract-The-last-valence-electrons-left-on-an-ion-are-used-to-assign-the.png)