JEE Main Chemistry question
Which pair has elements containing the same number of electrons in the outermost orbit?
Answer: (A)
Solution
Cl and Br are both halogens (Group 17) with 7 electrons in their outermost shell ( and ).
Which pair has elements containing the same number of electrons in the outermost orbit?
Cl and Br are both halogens (Group 17) with 7 electrons in their outermost shell ( and ).