Question

Choose the correct word given in brackets

  • Periodic Table
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Answer

Question
  1. The property which is not periodic in nature is ____ (radioactivity / oxidising power) 
  2. Covalent radius of atoms is ____ than Vanderwaal’s radius. ( less / higher) 
  3. There ____ groups in a long form of periodic table. ( 18 / 9) 
  4. Example of a light metal is ____. (K / Fe) 
  5. Group and period number of 19K are ____ and ____. (4 and 2 / 1 and 4)

Answer

  1. The property which is not periodic in nature is radioactivity.
  2. Covalent radius of atoms is less than Vanderwaal’s radius.
  3. There are 18 groups in a long form of periodic table.
  4. Example of a light metal is K (potassium).
  5. Group and period number of 19K are 1 and 4.

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