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ICSE Class 7 Chemistry Question 16 of 16

Atomic Structure — Question 5

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Question

Question 5

Name the following

  1. A molecule of a compound containing two oxygen atoms and one nitrogen atom.

  2. The radical containing one nitrogen and four hydrogen atoms.

  3. The compound formed when iron [Fe2+] combines with oxygen [O2-].

  4. The group of the Modern Periodic Table to which calcium [Ca2+] belongs.

  5. A non-metal which forms a polyatomic molecule with more than three atoms.

Answer

  1. Nitrogen dioxide [NO2]

  2. Ammonium [NH4]

  3. Iron (II) oxide [FeO]

  4. Group 2

  5. Phosphorous (P4)