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Some Basic Concepts of Chemistry — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistrySome Basic Concepts of Chemistry1 Mark
MCQ
Atomic mass of an element is:
  • A
    Actual mass of one atom of the element
  • B
    Average mass of an atom of different atoms of the element
  • C
    Always a whole number
  • D
    None of these
✓

Answer

  1. Average mass of an atom of different atoms of the element

Explanation:

Atomic mass is an average mass of different atoms of an element, as most elements have different isotopes. Atomic mass is usually not a whole number. It can be a fraction.

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