Q. What are polyatomic ions ? Give two example.
Class 9th Science Chapter 3 Atoms and molecules Page no. 44
Answers
Answer:
Ionic Compounds Containing Polyatomic Ions Polyatomic ions are ions which consist of more than one atom. For example, nitrate ion, NO3-, contains one nitrogen atom and three oxygen atoms. The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit.
Ionic Compounds Containing Polyatomic Ions Polyatomic ions are ions which consist of more than one atom. For example, nitrate ion, NO3-, contains one nitrogen atom and three oxygen atoms. The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit.
Answer:
The prefix poly- means "many," in Greek, but even ions of two atoms are commonly referred to as polyatomic. Examples: Carbonate (CO32-), sulphate (SO42-), nitrate - NO3- and hydroxide ions OH- are all polyatomic ions.
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