Atoms and Elements MCQs Quiz Worksheet PDF Download

Learn atoms and elements MCQs, science test for online learning courses and test prep to practice. Atoms and atom model multiple choice questions (MCQ), atoms and elements quiz questions and answers for online 7th grade tests.

Science practice test MCQ: number of protons and electrons in an atom of uranium is with options 90, 91, 92 and 94 with virtual academy portal for online learning of mid term and final exams preparation. Free science revision notes to learn atoms and elements quiz with MCQs to find questions answers based online learning tests.

MCQs on Atoms and Elements Quiz PDF Download

MCQ: Number of protons and electrons in an atom of uranium is

  1. 90
  2. 91
  3. 92
  4. 94


MCQ: As there are same number of electrons and protons in an atom, atomic number can also be called

  1. electron number
  2. proton number
  3. nucleon number
  4. mass number


MCQ: Smallest atom in 'periodic table' yet found is

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


MCQ: Atoms of different elements differ from each other because of

  1. difference in color
  2. difference in size
  3. difference in shape
  4. difference in particle numbers


MCQ: A material which is made up of one type of atom is known as

  1. element
  2. compound
  3. mixture
  4. molecule