LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
+1 vote
22.9k views
by (74.5k points)

The electronic configuration of four elements are given below. Which elements does not belong to the same family as others? 

(a) [Xe]4f145d101s2 

(b) [Kr]4d105s2 

(c) [Ne]3s23p

(d) [Ar]3d104s2

1 Answer

+2 votes
by (68.2k points)
selected by
 
Best answer

The correct option is : (c) [Ne]3s23p5

Explanation: 

Elements (a), (b) and (d) belong to the same group since each one of them has two electrons in valence shell. In contrast, element (c) has seven electrons in the valence shell, and hence it lies in other group.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...