electronshells

[datdat]

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for the elements in Groups IIIA through VIIIA, is the outermost shell p only or s and p together?

Thanks

 

[nze82]

for the elements in Groups IIIA through VIIIA, is the outermost shell p only or s and p together?

Thanks

s and p together. Which is why when they ask you for the # of valence electrons (electrons in the outermost shell) which is representative of the group #, you count the electrons in s and p (i.e. group 8 has 8 electrons in its valence shell-2 in s and 6 in p).