Question

Which one of the following is an isotope of Boron?

• A. ${}^{12}B$
• B. ${}^{11}B$
• C. ${}^{13}B$
• D. None of the above

Answer 1

The correct option is B ${}^{11}B$

Boron exists in two isotopic forms, ${}^{10}B$ and ${}^{11}B$.