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DIFFERENCE BETWEEN ELEMENT AND COMPOUND

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ELEMENT

  1. An element is pure substance formed by same kind of atoms (Having same atomic numbers). Examples of elements are Hydrogen, Oxygen, Carbon, Iron, Sodium etc.
  2. There are only 118 elements in the world. Thus number of elements in the world is limited.
  3. An element can’t be broken down into two or more simpler substances by any method.
  4. Every element has a unique atomic number. Thus different elements can’t have same atomic number. For example of atomic number of hydrogen is 1.
  5. Every element possess some physical and chemical properties.

COMPOUND

  1. When two are or more atoms of different elements reacts chemically in a fixed ratio then new substance formed is called compound. Examples of compounds are NaCl, HCl, H2O and CH4.
  2. The number of compounds are unlimited.
  3. A compound can be broken down into its constitute atoms.
  4. Compounds have only molecular mass. For example molecular mass of NaCl is 58.44 gram per mole.
  5. Physical and chemical properties of a compound are different from those of its constituent elements.

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