Question

what is the most likely mass of a randomly selected boron atom? 6, because boron has 6 neutrons 5, because borons atomic number is 5 10, because boron - 10 is most abundant 11, because boron - 11 is most abundant

Explanation:

Boron has two main isotopes: boron - 10 and boron - 11. The abundance of boron - 11 is about 80.1% while that of boron - 10 is about 19.9%. The mass of an atom is mainly determined by its protons and neutrons (mass number). Since boron - 11 is more abundant, a randomly selected boron atom is most likely to be boron - 11.

Answer:

11, because boron - 11 is most abundant