Carbon (12) has a higher atomic mass than lithium (7).
Florine has a greater Atomic Weight because Carbon has a Atomic Weight of 12 amu (atomic mass units) while Florine has a Atomic Weight of 19.
fluorine
The average atomic mass of Barium is 137.33 amu.
nickel has a mass of 58.69 while carbon has a mass of 12.0107
The atomic mass of boron, which is the element to which boran refers, is approximately 10.81 atomic mass units (amu).
That would be boron, with an atomic mass of 10.811.
Atomic mass number of boron(B) - 11
nickel
Atomic weight of carbon: [12,0096; 12,0116]. Atomic weight of chlorine: [35,446; 35,457]. The molar mass of chlorine is greater; rounded 35,45 g/mol.
Atomic Number = 5 Atomic Mass = 10.811
Boron - B - Group IIIThe atomic number is 5.The mass number is 11.