Boron exists as a two stable isotopesc as 10 B
(19% and (81%) find out average atomic mass of boron
10.8
11.8
8.1
11.5
Answers
Answered by
0
Answer:
Correct option is
A
10.8
Average atomic weight =
100
∑%abundant×atomic mass
=
100
19×10+81×11
=10.81
Option B is the answer.
Answered by
0
Answer:
10.8
Explanation:
19/100 * 10 + 81/100 * 11 = 10.8
Relative Abundance times Mass of the Isotope will give the answer
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