Atoms and Elements MCQs Test and Answers pdf Download

Practice atoms and elements MCQs and science for test prep and learning. Free study guide has multiple choice questions (MCQ) with atoms and elements quiz as number of protons and electrons in an atom of uranium is with answering options 90, 91, 92 and 94 for exam preparation. Study to learn atoms and elements quiz with MCQs to find questions answers based online tests.

MCQs on Atoms and Elements

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