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

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Learn elementary school science multiple choice questions (MCQs): Chemical formulae of molecular element and compound, what is atom, what is molecule, what is ion, with choices rutherford's model, thomson's model, dalton's model, and bohr model for online elementary education degree. Free science study guide for online learning what is atom quiz questions to attempt multiple choice questions based test.

MCQ on Atoms Molecules and Ions Worksheets 7 PDF Book 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