Question

What is the % abundance of Boron -12?

a
0%
b
20%
c
40%
d
60%
e
80%
f
100%

Answer 1

@Astrid1

Answer 2

@MrMudd183

Answer 3

I'm pretty sure it's 80.1% because well... I know it's more than 60 and I don't think it would be as high as 100% so I would go with 80%

Let me know what you get!

Answer 4

but Boron -11 is 80%

Answer 5

\(\color{#0cbb34}{\text{Originally Posted by}}\) @iuytyuioiuytyuiop
but Boron -11 is 80%
\(\color{#0cbb34}{\text{End of Quote}}\)
okay. I would wait for someone else's thoughts...

Answer 6

Check out this page
https://periodictable.com/Isotopes/005.12/index.html
It lists various properties of this element, and also mentions the abundance.

Answer 7

it says 12B has no abundance

Answer 8

does that mean it's A

Answer 9

yes the abundance is practically 0% since the half-life is only around 20.2 milliseconds based on what this page says
https://en.wikipedia.org/wiki/Isotopes_of_boron
So every 20.2 milliseconds, the amount of boron-12 is cut in half

Answer 10

Okay thank you

Answer 11

No problem

Answer 12

Only 10b and 11b have an abundance

Answer 13

Yes,
abundance of \(^{10}\text{B}\) is around 20%
abundance of \(^{11}\text{B}\) is around 80%
These are stable isotopes compared to the unstable ones with very short half-lives