Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Two stable isotopes of lithium 6 3 Li and 7 3 Li have respective abundances of 7.5% and 92.5%. These isotopes have masses 6.01512 u and 7.01600 u, respectively. Find the atomic mass of lithium.

Q.13.1 Two stable isotopes of lithium _{3}^{6}\textrm{Li} and _{3}^{7}\textrm{Li} have respective abundances of 7.5\; ^{o}/_{o} and 92.5\; ^{o}/_{o}. These isotopes have masses 6.01512 \; u and 7.01600 \; u, respectively. Find the atomic mass of lithium.

Answers (1)

best_answer

Mass of the two stable isotopes and their respective abundances are 6.01512 \; u and 7.01600 \; u and 7.5\; ^{o}/_{o} and 92.5\; ^{o}/_{o}.

m=\frac{6.01512\times7.5+7.01600\times92.5}{100}

m=6.940934 u

Posted by

Sayak

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

CBSE Date Sheet 2025 (Out) Live: Class 10, 12 board exam time table at cbse.gov.in; syllabus, sample papers
anam-khan

CBSE Class 12 board exam date sheet 2025 out; exams from February 15 to April 4
anam-khan

When will CBSE Board exam 2025 date sheet be released for Class 10, 12?

Latest Question