Classification Of Elements And Periodicity In Properties Ques 345
Question: Fluorine, chlorine, bromine and iodine are placed in the same group (17) of the periodic table, because [KCET (Med.) 1999]
Options:
A) They are non-metals
B) They are electronegative
C) Their atoms are generally univalent
D) They have 7 electrons in the outermost shell of their atom
Show Answer
Answer:
Correct Answer: D
Solution:
Electronic configuration of outermost shell of group-17 or halogens are $ ns^{2}np^{5} $ .
