Gram Atomic Mass
Gram Atomic Mass
Atomic Mass: According to Dalton’s, each element has a characteristic atomic mass. But determining the mass of an individual atom was a relatively difficult task due to its very small size. Hence, their relative atomic masses were determined using the laws of chemical combinations and the compounds formed. For this purpose, initially 1/16 of the mass of an atom of naturally occurring oxygen was taken as standard unit because of the following two reasons:
However in 1961, carbon (C- 12 isotope) was chosen as standard reference for measuring atomic masses universally because C-12 isotope of Carbon is the most abundant.
Gram atomic mass is the atomic weight on the periodic table of an element in grams. It is the mass of 1 mole of an element in grams, which is its moalr mass.
Examples of values expressed in Gram atomic mass :
What is the atomic mass of Sodium ? | |||
| Right Option : B | |||
| View Explanation | |||
What is gram atomic mass of carbon ? | |||
| Right Option : B | |||
| View Explanation | |||
Which isotope of Carbon is chosen as standard reference for measuring atomic masses universally? | |||
| Right Option : B | |||
| View Explanation | |||
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