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Question

What do you call the element from atomic number 57 -71?


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Solution

  1. The elements from atomic number 57 to 71 are called lanthanides.
  2. Some common properties of lanthanides are, that they are silvery-white coloured metals that tarnished when exposed to air due to the formation of oxides.
  3. All the elements of the lanthanide series possess the oxidation state of +3.
  4. All the elements of the lanthanide series have high boiling and melting point.
  5. Lanthanides are also termed inner transition metals.
  6. Some examples of elements of the lanthanide series are Lanthanum (La), Cerium (Ce), Europium (Eu), etc.

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