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Learn Atoms and elements Multiple Choice Questions (MCQ Quiz) with Answers PDF (Atoms and Elements MCQ PDF e-Book) download to study Class 7 Science Tests. Learn Atoms and Atom Model Multiple Choice Questions and Answers (MCQs), Atoms and Elements quiz answers PDF to learn online homeschool courses. Study Atoms and Elements App Download: Free Class 7 Science MCQ App to study inside an atom, uses of radioisotopes, ionic bonds, mass number and isotopes test prep for distance learning classes.

Free "Atoms and Elements" App Download [Free] with MCQ: Number of protons and electrons in an atom of uranium is; with answers: 90, 91, 92, and 94 to learn online homeschool courses. Solve Atoms and Atom Model Quiz Questions, download Google e-Book (Free Chapter) for school certificate.

Atoms and Elements MCQs PDF Download – Prep Test

MCQ 1: The number of protons and electrons in an atom of uranium is:

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

MCQ 2: 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 3: The smallest atom in 'periodic table' yet found is:

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

MCQ 4: 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 5: A material which is made up of one type of atom is known as:

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

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