Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
1.3k views
in Quantum Mechanical Model of Atom by (45.7k points)

Assertion (A) : Cr with electronic configuration [Ar] 3d5 4s1 is more stable than [Ar] 3d4 4s1

Reason(R ): Half filled orbitals have been found to have extra stability than partially filled orbitals. 

(a) A and R are correct and R is the correct explanation of A

(b) A and R are correct but R is not the correct the explanation of A

(c) A is correct but R is wrong

(d) A is wrong but R is correct.

Please log in or register to answer this question.

1 Answer

+2 votes
by (44.9k points)

(a) A and R are correct and R is the correct explanation of A.

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.

...