Boron - B - Group III
The atomic number is 5.
The mass number is 11.
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Zink is a meta element. Atomic mass of it is 65. Atomic number of it is 30.
Nitrogen, element 7, has an atomic mass of 14.0067, rounded to 14.007.
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The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
Cobalt is an atomic mass of 58.93 atomic mass units