Class 7 Science Learning App | Atoms Molecules and Ions Quiz e-Book PDF

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Class 7 Science MCQs – Practice Test 7 (Chapter 2)

Atoms Molecules and Ions Quiz with Answers PDF Download – Test 7

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Study Atoms molecules and ions Quiz Questions and Answers PDF to improve science performance online. Download the Atoms Molecules and Ions Quiz PDF e-Book, Ch. 2-7 to learn Class 7 Science Course. Solve Chemical Formulae of Molecular Element and Compound MCQs PDF, Atoms Molecules and Ions Quiz Questions and Answers for science online school programs. Download Class 7 Science Learning App: Free Atoms Molecules and Ions Quiz App to learn chemical formulae of molecular element and compound, what is atom, what is molecule, what is ion test prep to improve science performance online.

Free Class 7 Science Learning App (Android & iOS) with MCQ: "In nucleus, mass of an atom is more than"; with answers: 0.9499, 0.9994, 0.9949, and 0.4999. Learn Chemical Formulae of Molecular Element and Compound MCQ Questions, download Google Book (Free Chapter) to improve educational success online.

Atoms Molecules and Ions Quiz – Practice Test 7 PDF Download

MCQ 31: In nucleus, mass of an atom is more than:

  1. 0.9994
  2. 0.9499
  3. 0.9949
  4. 0.4999

MCQ 32: A theory of movement of electrons in a fixed orbit around nucleus was given by:

  1. Thomson's Model
  2. Rutherford's Model
  3. Dalton's Model
  4. Bohr Model

MCQ 33: Two or more atoms chemically combined together form a:

  1. atom
  2. molecule
  3. nucleus
  4. atomic number

MCQ 34: An electrically charged particle which is formed when an atom gains or loses electron is called:

  1. ion
  2. charge
  3. formula
  4. neutron

MCQ 35: The number and types of atoms a molecule contain, are shown by its:

  1. chemical formula
  2. molecular formula
  3. structural formula
  4. atomic formula

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