Atoms and Atom Model Multiple Choice Questions and Answers 25 PDF Book Download
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MCQs on Atoms and Atom Model Worksheets 25 PDF Book Download
MCQ: Number of elements discovered yet, is
MCQ: Symbol of "Beryllium" is
MCQ: Radioisotopes can also be traced
- inside human body
- 10,000 kilometers underground
- in feces of animals
- in plants
MCQ: Valency of inert of rare gases is
MCQ: If we remove electron from outer shell, atom turns
- anti negative