Chemistry, asked by itsshiwanshu, 1 year ago

Atomic weight of an element is compared with which of the following to get the atomic weight of that element?
A. Oxygen
B. Carbon
C. Hydrogen
D. Nitrogen

Answers

Answered by sinhaaaryan27

Answer: (B) Carbon

Explanation:

1 Atomic mass unit is defined as (1/12)th mass of a ¹²C isotope. Thus atomic mass of an element is relative and carbon-12 atom mass is taken as the standard for comparing.

itsshiwanshu: i also answered the same but RRB answer is Hydrogen.

sinhaaaryan27: The answer is carbon. This is true because all elements in the periodic table have their mass relative to Carbon-12 and also due to % abundance. If we change the standard, all the masses will have to change!!

sinhaaaryan27: Correction: % abundance to give average atomic mass

itsshiwanshu: yeah i agree wid u. may be the answer which is given by RRB is wrong. Btw thanks alot for your kind attention to my question.

sinhaaaryan27: Glad to help! Happy asking!

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