contestada


The atomic mass of boron is 10.811. What is the mass number of the most
abundant isotope of boron?
A.9
B.12
C.11
D.10

Respuesta :

Answer:

C.11

Explanation:

Boron-11 makes up around 80% of all natural Boron. And, typically, the quickest way to determine the most abundant isotope of an element is to just round the atomic mass to the nearest whole number.