Atoms and Elements MCQs Quiz and Answers Tests pdf Download

Practice atoms and elements MCQs in science quiz for test prep. Atoms and atom model quiz questions has multiple choice questions (MCQ) with atoms and elements test, answers as the number of protons and electrons in an atom of uranium is, answer key with choices as 90, 91, 92 and 94 for competitive exam preparation worksheets. Free science revision notes to learn atoms and elements quiz with MCQs to find questions answers based online 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 that of

  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 that is made up of only one type of atom is known as

  1. Element
  2. Compound
  3. Mixture
  4. Molecule