Groups 1 and 2
The valence electrons for Groups 1 and Group 2 are equal to the group number.In other words, Valence Electrons for Group 1 =1, and Valence Electrons for Group 2 =2.
Valence Electrons: The electrons in the outermost energy level of an atom.
Dot Diagrams show the symbol of an element with dots, representing valence electrons, positioned around the symbol.
To predict the valence electrons for groups 13 through 18:
Subtract 10 from the group number.
The answer is equal to the number of valence electrons for each element in the group.
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