Atoms and Atom Model Multiple Choice Questions 20 PDF Download

Practice atoms and atom model MCQs, grade 7 online science test 20, mass number and isotopes multiple choice questions and answers. Mass number and isotopes revision test has science worksheets, helping answer key with choices as 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 of multiple choice questions (MCQ) with mass number and isotopes quiz as scientists name isotopes by putting for competitive exam prep, viva interview questions. Free science study guide to practice mass number and isotopes quiz to attempt multiple choice questions based test.

MCQs on Atoms and Atom Model Quiz PDF Download Worksheets 20

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. The orbits on which electrons revolve around the 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. The positive electrical charges of protons are balanced by

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

C