Atoms Molecules and Ions Multiple Choice Questions and Answers 7 PDF Download

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MCQs on Atoms Molecules and Ions Worksheets 7 Quiz PDF Download

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

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

A

MCQ: 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

D

MCQ: Two or more atoms chemically combined together form a

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

B

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

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

A

MCQ: Number and types of atoms a molecule contain, are shown by its

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

A