Class 7 Science MCQ App Download | Atoms and Atom Model MCQ e-Book PDF

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Class 7 Science MCQs – Practice Test 6 (Chapter 1)

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Learn Atoms and atom model Multiple Choice Questions (MCQ Quiz) with Answers PDF (Atoms and Atom Model MCQ PDF e-Book) download Ch. 1-6 to learn Class 7 Science Course. Study Science and Radioisotopes Multiple Choice Questions and Answers (MCQs) PDF, Atoms and Atom Model Quiz Questions and Answers for online certificate programs. Download the Class 7 Science MCQ App: Free Atoms and Atom Model MCQ App to learn science and radioisotopes, mass number and isotopes, atoms and discovery, electrons and shells, valencies and valency table test prep for free online classes.

"Class 7 Science MCQ" App [Free] Android & iOS with MCQ: Isotope of uranium (Uranium-238) contains; with answers: 142 neutrons, 141 neutrons, 146 neutrons, and 149 neutrons for online certificate programs. Practice Science and Radioisotopes MCQ Questions, download Apple Book (Free Chapter) for distance education.

Atoms and Atom Model MCQ – Practice Test 6 PDF Download

MCQ 26: The isotope of uranium (Uranium-238) contains:

  1. 141 neutrons
  2. 142 neutrons
  3. 146 neutrons
  4. 149 neutrons

MCQ 27: As neutrons have electrical charge, they do not effect:

  1. bonding properties
  2. physical properties
  3. chemical properties
  4. thermal properties

MCQ 28: The theory about atom was first put forward by a Greek philosopher:

  1. Williams
  2. Democritus
  3. Isaac Newton
  4. Galileo

MCQ 29: Electrons revolve around the nucleus as fast as:

  1. sound in air
  2. sound in liquid
  3. sound in solid
  4. sound in light

MCQ 30: If hydrogen forms only one bond, then the valency of hydrogen is:

  1. 1
  2. -1
  3. 7
  4. 2

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