Atoms and Atom Model Study App | Class 7 Science MCQs e-Book PDF
Class 7 Science MCQs (Grade 7) From Textbook

Class 7 Science Competitive Exam MCQs – Practice Test 37 (Chapter 1)

Atoms and Atom Model MCQs with Answers PDF Download – Test 37

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Atoms and Atom Model MCQs – Practice Test 37 PDF Download

MCQ 181: The two isotopes of carbon are:

  1. carbon-11 and carbon-13
  2. carbon-13 and carbon-15
  3. carbon-6 and carbon-7
  4. carbon-13 and carbon-14

MCQ 182: The shells are arranged around nucleus according to their:

  1. size
  2. shape
  3. energy level
  4. mass

MCQ 183: The ionic chemical formula of hydrogen is:

  1. H-
  2. H+
  3. H-
  4. H+

MCQ 184: The radiation is released in a process known as:

  1. radioactive explosion
  2. radio decay
  3. radioactive decay
  4. radiation release

MCQ 185: A largest occurring atom in the period table yet known is that of:

  1. titanium
  2. platinum
  3. uranium
  4. plutonium

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