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.
In the formula of aluminium sulhpate, what does the subscript 3 indicate? | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following statement / statements are correct : (a) Sodium and calcium can lose one and two electrons respectively from their outermost shells to have an octet. (b) Boron have 3 electrons in its outermost shell. (c) The ions with negative charge are known as anion or negative ions. | |||
| Right Option : D | |||
| View Explanation | |||
Which among the following pairs of elements forms cation and anion, respectively? | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [10]
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
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