Class VII

Two or more atoms chemically combined together to form a
  1. atom
  2. molecule
  3. nucleus
  4. atomic number
Number and types of atoms a molecule contain is shown by its
  1. chemical formula
  2. molecular formula
  3. structural formula
  4. atomic formula
An electrically charged particle which is formed when an atom gains or losses and electron is called
  1. ion
  2. charge
  3. formula
  4. atom
If number of atoms present in one then there is no
  1. subscript
  2. charge
  3. existence
  4. chemical symbol
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