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CBSE Class 9 Answered

(a) What is relative atomic mass? Express it in the form of an equation. (b) What does the symbol 'Fe' indicates about the mass of iron element?
Asked by Topperlearning User | 04 Feb, 2015, 10:40: AM
answered-by-expert Expert Answer

(a) The relative atomic mass or atomic weight of an element is the number of times one atom of the element is heavier than (1/12) times of the mass of an atom of carbon-12.

begin mathsize 14px style Relative space atomic space mass space equals space fraction numerator Mass space of space 1 space atom space of space the space element over denominator 1 divided by 12 th space the space mass space of space one space straight C minus 12 space atom end fraction end style

(b) The symbol 'Fe' indicates 56 grams of iron element.

Answered by | 04 Feb, 2015, 12:40: PM

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