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Class 7 Science MCQs – Practice Test for Exam Prep
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Learn Inside an atom Multiple Choice Questions (MCQ Quiz) with Answers PDF to learn experiments online. Download the Inside an atom MCQ PDF e-Book to learn Class 7 Science Tests. Study Atoms and Atom Model Multiple Choice Questions and Answers (MCQs), Inside an atom quiz answers PDF to master middle school science. Download the Inside an atom MCQ App: Free Class 7 Science Study App to learn inside an atom, uses of radioisotopes, ionic bonds, mass number and isotopes test prep to master science understanding online.
Free "Inside an atom MCQ" App Download with MCQ: If the mass of protons and neutrons is 1, then the mass of electron is; with answers: 2, 2-jan, 4-jan, and 1/1890. Solve Atoms and Atom Model Quiz Questions, download Apple Book (Free Chapter) to learn experiments online.
MCQ 1: If the mass of protons and neutrons is 1, then the mass of electron is:
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