Why ions are more stable than atom
Answers
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Molecules have lower energy than that of the combines atoms molecules are more stable than atoms since chemical species with lower energy are more stable.
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Answer:
Because their octave or duplet is complete, ie their last shell (valance shell) is complete.
Explanation:
What are ions and how are they formed ?
Ions are charged particles (-ve or +ve ly charged).
They are formed when
- Metals lose electrons, forming +ve ions called cations.
- Non-metals gain electrons, forming -ve ions called cations.
Why are they more stable than atoms ?
This is because metals lose and non-metals gain electrons in order to complete their last (valance) shell and thus, become stable.
Some Examples...
1. Sodium
Na → EC → 2, 8, 1
Na+ ion → EC → 2, 8
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2. Potassium
K → EC → 2, 8, 8, 1
K+ ion → EC → 2, 8, 8
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3. Calcium
Ca → EC → 2, 8, 8, 2
Ca 2+ ion → EC → 2, 8, 8
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4. Oxygen
O → EC → 2, 6
O 2- ion → EC → 2, 8
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5. Chlorine
Cl → EC → 2, 8, 7
Cl - ion → EC → 2, 8, 8