Atomic weight and Atomic Mass
Saturday 19 August 2017
Mass :-
in actually what the particle in itor actual amount of material contained in it or how hard is to accelerate it or decelerate it ,mass is independent of everything that is gravitational force etc and it remains constant everywhere .It is measure in kg generally but for atoms it is measured in amu(atomic mass unit) which is few grams.
the weight of 1 proton or 1 neutron is approximateley equal to 1 amu
carbon 12(C-12) is taken as benchmark and carbon 12 has mass 12 amu
Atomic weight :-
weight is the total amount of gravitational force exerted by gravity in it.So even on earth we have difference in our weights due to difference in gravitational forces .For atoms atomic weight is also calculated in "amu" but it is weighted average across many isotopes like we can take example of carbon it has isotopes like carbon 12,carbon 13,carbon 14 and the weighted atomic weight comes out to be 12.011 amu of all these isotopes as carbon 12 is most abundant in earth
in actually what the particle in itor actual amount of material contained in it or how hard is to accelerate it or decelerate it ,mass is independent of everything that is gravitational force etc and it remains constant everywhere .It is measure in kg generally but for atoms it is measured in amu(atomic mass unit) which is few grams.
the weight of 1 proton or 1 neutron is approximateley equal to 1 amu
carbon 12(C-12) is taken as benchmark and carbon 12 has mass 12 amu
Atomic weight :-
weight is the total amount of gravitational force exerted by gravity in it.So even on earth we have difference in our weights due to difference in gravitational forces .For atoms atomic weight is also calculated in "amu" but it is weighted average across many isotopes like we can take example of carbon it has isotopes like carbon 12,carbon 13,carbon 14 and the weighted atomic weight comes out to be 12.011 amu of all these isotopes as carbon 12 is most abundant in earth
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