Formation of Ions
Formation of Ions
Formation of ions : Ions are formed by the loss or gain of electrons. When an atom loss electrons, it becomes positively charged. Fro example, sodium and calcium
can lose one and two electrons respectively from their outermost shells to have an octet and become sodium ion and calcium ion respectively.
sodium sodium ion
calcium calcium ion
On the other hand, chlorine and oxygen can gain one and two electrons respectively in their outermost shells to have an octet, and they become negatively charged ions.
chlorine chloride ion
oxygen oxgen ion
Thus, ions are electrically charged atoms. The ions positive charge are called cation or positive ions. The ions with negative charge are known as anion or negative ions.
Which among the following pairs of elements forms cation and anion, respectively? | |||
| Right Option : C | |||
| View Explanation | |||
_____________________ are the positively charged ions. | |||
| Right Option : B | |||
| View Explanation | |||
________________ are the negatively charged ions. | |||
| Right Option : A | |||
| View Explanation | |||
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