Atoms and Atom Model Multiple Choice Quiz Questions 20 pdf Download

Practice science quiz 20 on atoms and atom model MCQs, grade 7 mass number and isotopes multiple choice questions. Free mass number and isotopes guide has science worksheet with answering options mass number after element name, atomic number after element name, atomic number before element name and mass number before element name of multiple choice questions (MCQ) with mass number and isotopes quiz as scientists name isotopes by putting for exam prep. Study to learn mass number and isotopes quiz to attempt multiple choice questions based test.

MCQs on Atoms and Atom Model - Quiz 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. Particles that move around nucleus in orbits are

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

A

MCQ. Orbits on which electrons revolve around nucleus are called

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

B

MCQ. Ion with a 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