Q: The relative atomic mass of boron (which exists in two isotopic forms 10B and 11B) is 10·81. What will be the abundance of 10B and 11B, respectively (consider a sample of 100 atoms) ?
(a)19% and 81%
(b)81% and 19%
(c)38% and 62%
(d)62% and 38%
Answer pending verification