Chapter 2: Class 7 Science Exam Tests
Class 7 Science MCQs - Chapter 2
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The Multiple Choice Question (MCQ Quiz): To find out number of neutrons in an atom, we need to know the; "Atoms and Atom Model" App Download (Free) with answers proton number, atomic number, electron number and mass number to learn online school courses. Solve mass number and isotopes quiz questions, download Google eBook (Free Sample) for distance learning classes.
MCQ 1: To find out number of neutrons in an atom, we need to know the
MCQ 2: The attraction of two ions due to opposite charge is known as
MCQ 3: To trace the path of phosphorus, the isotope of phosphorus which is added to the fertilizers, is
MCQ 4: If the mass of protons and neutrons is 1, then the mass of electron is
MCQ 5: The name of physicist who discovered the nucleus of atom was
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