I need to find the valence number of all the elements in the periodic table. Where is located and what does it mean? Thanks!How do I find the valence number in a periodic table?
the valance number is the # of electrons in an elements outermost energy level. the transition elements have different valance #s and Group 1- 1
Group 2- 2
Group 13- 3
Group 14- 4
Group 15- 5
Group 16- 6
Group 17- 7
Group 18- 0
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