Atomicity of an element is defined as the number of atoms of an element in its one molecule for ...
0Atomicity of an element is defined as the number of atoms of an element in its one molecule for example atomicity of \( \mathrm{He}, \mathrm{N}_{2} \), \( \mathrm{O}_{3} \) are 1, 2,3 respectively. The atomicity can be determined by calculating experimental value of observed atomic mass and then dividing by its normal atomic mass. Atomic mass of a metal is obtained by Dulong petits law. Atomic mass is the relative mass of atom of an element as compared to the mass of one \( { }^{12} \mathrm{C} \) atom. Average atomic mass of an element is due to the average of masses of its different isotopes.
The specific heat of metal is \( 0.67 \mathrm{~J} / \mathrm{g} \). Its equivalent mass is 20 . Its exact atomic mass is:
(A) \( 46.33 \)
(B) 20
(C) 40
(D) 22
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