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

Class 7 Science MCQs (Grade 7) From Textbook

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

Atoms and Atom Model MCQ with Answers PDF Download – Test 6

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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 science virtual learning success. Free Class 7 Science MCQ App: Download the Atoms and Atom Model Study App to learn science and radioisotopes, mass number and isotopes, atoms and discovery, electrons and shells, valencies and valency table test prep for science virtual learning networks.

Free "Class 7 Science MCQ" App (iOS & Android) with MCQ: Isotope of uranium (Uranium-238) contains; with answers: 142 neutrons, 141 neutrons, 146 neutrons, and 149 neutrons for science virtual learning success. Practice Science and Radioisotopes MCQ Questions, download Apple Book (Free Chapter) to achieve educational success.

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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