Atoms and Atom Model Multiple Choice Questions and Answers 20 PDF Download

Learn atoms and atom model multiple choice questions, grade 7 science online test 20 for elementary school degree online courses, distance learning for exam prep. Practice mass number and isotopes multiple choice questions (MCQs), atoms and atom model quiz questions and answers for science class for seventh grade science help.

Study elementary school science multiple choice questions (MCQs): scientists name isotopes by putting, for free online courses with choices mass number after the element name, atomic number after the element name, atomic number before the element name, and mass number before the element name, mass number and isotopes quiz for online e-learning with elementary, secondary and high school education with online student portal. Free science study guide for online learning mass number and isotopes quiz questions to attempt multiple choice questions based test.

MCQs on Atoms and Atom Model Worksheets 20 Quiz PDF Download

MCQ: Scientists name isotopes by putting

  1. atomic number after the element name
  2. mass number after the element name
  3. atomic number before the element name
  4. mass number before the element name

B

MCQ: Nucleus' is surrounded by

  1. electrons
  2. protons
  3. neutrons
  4. electrons and protons

A

MCQ: Orbits on which electrons revolve around nucleus are called

  1. layers
  2. shells
  3. subshells
  4. atom

B

MCQ: Ion with positive charge is known as

  1. cation
  2. anion
  3. positron
  4. negatron

A

MCQ: Positive electrical charges of protons are balanced by

  1. photons
  2. neutrons
  3. electrons
  4. positrons

C