Grade 7 Science MCQs
Grade 7 Science MCQ - Topics
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"If the mass of protons and neutrons is 1, then the mass of electron is" Multiple Choice Questions (MCQ) on inside an atom App APK with 2, 2-jan, 4-jan, and 1/1890 choices for distance learning classes. Study atoms and atom model quiz questions for online certificate programs for school certificate.
MCQ: If the mass of protons and neutrons is 1, then the mass of electron is