Question

Explain in detail atomic mass and molecular moss by giving examples.

Answer 1

"The atomic mass of an element is, the number of times an atom of that element is heavier than an atom of carbon (12). Eg: oxygen's atomic mass is 16 amu.

The molecular mass is the number of times the molecule of the substance is heavier than one-twelfth of the mass of a carbon atom. Eg - Water (H2O)."

Answer 2

Answer:

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According to Moseley, similar properties recur periodically when elements are arranged according to increasing atomic number.