Chemistry
Grade-9
Easy

Question

Atomic weight is the weight of an atom relative to _______ of weight of 1 atom of C- 12

  1.  1 over 12
  2.  1 over 13
  3.  1 half
  4.  1 fourth

hintHint:

The atomic weight is also known as the relative atomic mass.

The correct answer is: 1 over 12


    The atomic weight is defined as the average atomic mass of isotopes of an element in a given sample. It is the weighted average atomic mass calculated using the relative abundance of isotopes of an element. The atomic weight is also known as the relative atomic mass.

    In other words atomic weight is the weight of an atom relative to 1/12 of weight of 1 atom of C- 12.

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