Atoms and Atom Model Multiple Choice Questions 21 PDF Download

Learn atoms and atom model MCQs, grade 7 online science test 21, atoms and elements multiple choice questions and answers. Atoms and elements revision test has science worksheets, helping answer key with choices as helium, hydrogen, lithium and magnesium of multiple choice questions (MCQ) with atoms and elements quiz as the smallest atom in 'periodic table' yet found is for competitive exam prep, viva interview questions. Free science study guide to practice atoms and elements quiz to attempt multiple choice questions based test.

MCQs on Atoms and Atom Model Quiz PDF Download Worksheets 21

MCQ. The smallest atom in 'periodic table' yet found is

  1. hydrogen
  2. helium
  3. lithium
  4. magnesium


MCQ. The number of neutrons in carbon-13 is

  1. 5
  2. 6
  3. 7
  4. 13


MCQ. To multiply multiple elements with a number we use

  1. comma
  2. dot
  3. brackets
  4. cross


MCQ. The ionic chemical formula of magnesium is

  1. Mg-2
  2. Mg+2
  3. Mg-
  4. Mg+


MCQ. Nuclear batteries that produce small amount of current have

  1. longer life
  2. shorter life
  3. large size
  4. circular shape