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प्रश्न
Compare atoms and ions of any three elements. Show the number of electrons before and after ion formation using bar graphs.
आलेख
दीर्घउत्तर
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उत्तर
The number of electrons in an atom changes when it gains or loses electrons to form an ion.
|
Element |
Electrons in Atom |
Ion Formed |
Electrons in Ion |
|---|---|---|---|
|
Sodium (Na) |
11 |
Na⁺ |
10 |
|
Magnesium (Mg) |
12 |
Mg²⁺ |
10 |
|
Chlorine (Cl) |
17 |
Cl⁻ |
18 |
Bar Graph: Comparison of Electrons in Atoms and Ions
Conclusion:
-
Sodium loses 1 electron to form Na⁺.
-
Magnesium loses 2 electrons to form Mg²⁺.
-
Chlorine gains 1 electron to form Cl⁻.
Thus, positive ions are formed by losing electrons, while negative ions are formed by gaining electrons.
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