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
106 views
in Chemistry by (59.4k points)
closed by
How would you explain the lower atomic radius of Ga as compared to Al ?

1 Answer

0 votes
by (70.4k points)
selected by
 
Best answer
Due to poor shielding of the valence electrons of Ga by the inner 3d-electrons, the effective nuclear charge of Ga is greter in magnitude than that of Al. As a result, the electrons in gallium experience greater force of attraction by then nucleus than in Al and hence atomic size of Ga (135 pm) is slightly less than of Al (143 pm).

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

...