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

Free "Atoms and Elements Study" App with MCQ: Number of protons and electrons in an atom of uranium is; with answers: 90, 91, 92, and 94. Solve Atoms and Atom Model Quiz Questions, download Google e-Book (Free Chapter) to participate digital science learning.

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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