Tag: atomic theory, periodic classification and properties of elements

Questions Related to atomic theory, periodic classification and properties of elements

Lanthanoids are also called as ___________.

chemistry atomic theory, periodic classification and properties of elements introduction to periodic table necessity of classification need for classification

  1. Transition elements

  2. Rare earth elements

  3. Both A and B

  4. None of these

Show answer
Correct Option: B
Explanation:

Rare earth metals are a group of chemically similar metallic elements comprising the lanthanide series and (usually) scandium and yttrium. They are not especially rare, but they tend to occur together in nature and are difficult to separate from one another.