Millions of tons. !!!!!
Nitrogen forms 79% of the world wide atmosphere.
The total mass of the atmosphere is estimated to be 5.15 x 10^(18) kgs.
[5,150,000,000,000,000,000 kgs].
So 79 % of this mass is 4.0685 x 10^(18) kgs of nitrgoen .
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The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
== The equation of atomic mass is protons+nuetrons== atomic mass. ===
Cobalt is an atomic mass of 58.93 atomic mass units
The atomic mass unit is not a SI unit. An atomic mass unit is equal to 1/12 from the atomic mass of the isotope 12C.
Atomic number 6, atomic mass 12.