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Question

What is the nature of the oxide of radium?


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Solution

Radium:

  • Radium is a chemical element having an atomic number 88 and an atomic symbol Ra.
  • It belongs to Group-2 and seventh period.
  • Radium belongs to alkaline earth metals, thus the nature of the oxide of radium is alkaline.

Reaction for the formation of Radium oxide:

  • When radium metal reacts in the air it gives a white mixture of radium oxide.
  • The chemical reaction can be depicted as:

2Ra(s)+O2(g)2RaO(aq)

Nature of oxide of radium:

  • As radium oxide is a metallic oxide, thus it is basic in nature.
  • As basic oxides on reaction with dilute acid form salt and water.

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