Ask a Question

The radius of La^3+ (Atomic number of La = 57) is 1.06Å.

← Prev Question Next Question →
+1 vote
22 views
asked Mar 31, 2018 in Chemistry by paayal (26,720 points) ● 4 ● 6 ● 11

The radius of La3+ (Atomic number of La = 57) is 1.06Å. Which one of the following given values will be closest to the radius of Lu3+ (Atomic number of Lu = 71)?

(a) 1.60Å

(b) 1.40Å 

(c) 1.06Å

(d) 0.85Å.

1 Answer

0 votes
answered Mar 31, 2018 by sanjaydas (61,430 points) ● 5 ● 7 ● 7
selected Apr 1, 2018 by Vikash Kumar
 
Best answer

(d) : Due to lanthanide contraction, the ionic radii of Ln3+ (lanthanide ions) decreases from La3+ to Lu3+. Thus the lowest value (here 0.85Å) is the ionic radius of Lu3+.

← Prev Question Next Question →

Related questions

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.

One Thought Forever

“There is a close connection between getting up in the world and getting up in the morning.“
– Anon
~~~*****~~~

Related questions

© 2017 Sarthaks eConnect
Managed by Sarthaks Digitizing India
...