Atoms Molecules and Ions Multiple Choice Questions and Answers 6 PDF Download
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MCQs on Atoms Molecules and Ions Worksheets 6 Quiz PDF Download
MCQ: Diameter of a 'nucleus' is
MCQ: Total number of protons in atom of each element is called its
- atomic number
- atomic mass
- molecular mass
- atomic scale
MCQ: Smallest particle of an atom which exists, is called
MCQ: Nucleus in an atom consists of
- both a and b
MCQ: Molecules which contain fixed number of same type of atoms are molecules or
- all of them