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Class 7 Science MCQs – Practice Test 25 (Chapter 1)

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Study Atoms and atom model Multiple Choice Questions (MCQs) with Answers PDF to attend digital science lessons. Download the Atoms and Atom Model MCQs PDF e-Book, Ch. 1-25 to study Class 7 Science Course. Learn Atoms and Atom Model Quiz Questions and Answers for science question bank access. Download the Atoms and Atom Model MCQs App: Free Class 7 Science Learning App to atoms and elements, electron levels, uses of radioisotopes, valencies and valency table, ions and bonding test prep for science guided education programs.

Free Atoms and Atom Model Learning App Download: Symbol of "Beryllium" is; MCQ with answers: li, na, ba, and be. Solve Atoms and Elements MCQ Questions, download Google e-Book (Free Chapter) to attend digital science lessons.

Atoms and Atom Model MCQs – Practice Test 25 PDF Download

MCQ 121: The number of elements discovered yet, is:

  1. 100
  2. 107
  3. 110
  4. 117

MCQ 122: The symbol of "Beryllium" is:

  1. Na
  2. Li
  3. Ba
  4. Be

MCQ 123: Radioisotopes can also be traced:

  1. inside human body
  2. 10,000 kilometers underground
  3. in feces of animals
  4. in plants

MCQ 124: The valency of inert of rare gases is:

  1. 8
  2. 10
  3. 0
  4. 5

MCQ 125: If we remove electron from the outer shell, the atom turns:

  1. negative
  2. positive
  3. neutral
  4. anti negative

Class 7 Science MCQs App & e-Book – Atoms and Atom Model Study Guide

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