Class 7 Science Quiz App – Atoms and Atom Model eBook PDF

Class 7 Science MCQs (Grade 7) From Textbook

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

Atoms and Atom Model Quiz with Answers PDF Download – Test 31

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The Atoms and atom model Quiz Questions and Answers PDF (Atoms and Atom Model Quiz PDF eBook) download Ch. 1-31 to learn Class 7 Science Course. Solve Uses of Radioisotopes MCQs PDF, Atoms and Atom Model Quiz Questions and Answers to study e-learning courses. The Class 7 Science Quiz App Download: Free Atoms and Atom Model App to learn uses of radioisotopes, ionic bonds, electrons and shells, chemical formulas, valencies and valency table test prep for online teaching certification programs.

The MCQ: Medical instruments can be sterilized using; "Class 7 Science Quiz" App (iOS, Android) with answers: boiled water, heat, radiations, and energy to study e-learning courses. Study Uses of Radioisotopes MCQ Questions, download Google Book (Free Chapter) for online teaching certification programs.

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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