Class 7 Science Study App | Atoms and Atom Model Quiz e-Book PDF

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Class 7 Science MCQs – Practice Test 31 (Chapter 1)

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Learn Atoms and atom model Quiz Questions and Answers PDF (Atoms and Atom Model Quiz PDF e-Book) download Ch. 1-31 to learn Class 7 Science Course. Solve Uses of Radioisotopes MCQs PDF, Atoms and Atom Model Quiz Questions and Answers for science student learning success. Free Class 7 Science Study App: Download the Atoms and Atom Model Quiz App to learn uses of radioisotopes, ionic bonds, electrons and shells, chemical formulas, valencies and valency table test prep for science virtual education systems.

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Atoms and Atom Model Quiz – Practice Test 31 PDF Download

MCQ 151: Medical instruments can be sterilized using:

  1. heat
  2. boiled water
  3. radiations
  4. energy

MCQ 152: Sodium and chlorine are attracted to each other because they are:

  1. ions
  2. positively charged
  3. negatively charged
  4. oppositely charged

MCQ 153: The nearest shell to a nucleus is called:

  1. shell A
  2. shell K
  3. shell S
  4. shell C

MCQ 154: The number of elements are approximately:

  1. fifty
  2. eighty
  3. hundred
  4. two hundred

MCQ 155: Atoms are linked together by chemical bonds. The two common chemical bonds are:

  1. ionic and dative bonds
  2. ionic and covalent bonds
  3. dative and covalent bonds
  4. ionic and metallic bonds

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