alleryp-block elements are those whose:
Af-orbital filled
BDIFFERENTIATING electron enters the p-subshell (groups 13-18)
Cs-electron is the differentiating electron
Dd-orbital filled
Answer & Solution
Correct answer: B. DIFFERENTIATING electron enters the p-subshell (groups 13-18)
p-block: groups 13–18. Includes boron family (group 13), carbon family (14), nitrogen family (15), oxygen family (16), halogens (17), noble gases (18).
Last electron in p-orbital.
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