an atom with 5 protons, 6 neutrons and 5 electrons has an atomic mass of 11 amu
explanation
- Atomic mass is also referred to as mass number.
- atomic mass is equivalent to total number of protons and neutrons.
- An atoms with 5 protons, 6 neutrons and 5 electron has a atomic mass of 11 because the total number of protons and neutrons =11