Atoms and Atom Model Multiple Choice Questions Test 6 Tests pdf Download

Practice science test 6 on atoms and atom model MCQs, grade 7 science and radioisotopes multiple choice questions and answers. Science and radioisotopes revision test has science worksheets, 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 i.e. uranium-238 contains for competitive exam prep. Free science study guide to learn science and radioisotopes quiz to attempt multiple choice questions based test.

MCQs on Atoms and Atom Model Quiz pdf Download Worksheets 6

MCQ. Isotope of Uranium i.e. Uranium-238 contains

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


MCQ. As neutrons have on electrical charge, they do not affect

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


MCQ. Idea of atom was first put forward by a Greek philosopher named

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


MCQ. Electrons revolve around nucleus as fast as

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


MCQ. Because hydrogen forms only one bond, valency of hydrogen is

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