Elements that have complete valence electron shells are mostly found in the blank block on the periodic table..?
Elements that possess complete valence electron shells are primarily located in which block of the periodic table?
A. S block
B. D block
C. P block
D. F block
1 Answers
Dec 11, 2024
The answer is the p block which is the righter-most block on the periodic table. This is true because this block contains the noble gases in group (vertical sections) 18 which have a full octet (of 8 electrons with exception of Helium, He).
Without considering the d block in groups 3-12, the s block (groups a and 2) and the p block (groups 13-18) can easily reveal the number of valence electrons elements of these groups have. For the s block, the group number is the number of valence electrons for the elements in that group. H, K, Cs,etc. all have 1 electron on their outermost shell, or valence shell. Be, Ca, Sr, etc. all have 2 in their valence shell.
For the p block (13-18), take the group number that is not one and this reveals the valence shell electron number. In group 13, the valence electron number is 3, in 14 it is 4, and so on. The noble gases--as previously mentioned--are in group 18 and have a full octet so named because they have 8 electrons in their valence shell (that is except Helium which has too few electrons).
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