Why ?An element X belongs to groupial What is the number of valence electrons in X(c) what is the number of valence electrons in Y 72 and another element Y belongs to group 15 of the periodic table( What is the valency of x22.(d) what is theExplain how you have arrived at your ansversable 7 How do atomic structures (electron arrangements) changfom let bo right ?

Why ?An element X belongs to groupial What is the number of valence el

1.	Why ?An element X belongs to groupial What is the number of valence electrons in X(c) what is the number of valence electrons in Y 72 and another element Y belongs to group 15 of the periodic table( What is the valency of x22.(d) what is theExplain how you have arrived at your ansversable 7 How do atomic structures (electron arrangements) changfom let bo right ?
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