Atomic mass is found at the bottom of an element's cell. This is under the atomic number, symbol, and element name.
Boron has the atomic number of 5. Its symbol on the periodic table is B. The atomic mass of boron is 10.81.
Atomic mass is measured in atomic mass units, or amu. This means boron has an atomic mass of 10.81 amu.
Answer:
The atomic mass of boron is 10.81 amu.
Hope this helps!
