Atoms and Atom Model Multiple Choice Questions 6 PDF Download

Practice atoms and atom model MCQs, grade 7 online science test 6, science and radioisotopes multiple choice questions and answers. Science and radioisotopes revision test has science worksheets, helping answer key with choices as 142 neutrons, 141 neutrons, 146 neutrons and 149 neutrons of multiple choice questions (MCQ) with science and radioisotopes quiz as the isotope of uranium (uranium-238) contains for competitive exam prep, viva interview questions. Free science study guide to practice science and radioisotopes quiz to attempt multiple choice questions based test.

MCQs on Atoms and Atom Model Quiz PDF Download Worksheets 6

MCQ. The isotope of uranium (Uranium-238) contains

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


MCQ. As neutrons have electrical charge, they do not effect

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


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

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


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

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