Question
Download Solution PDFNon-metals generally contain ________ electrons in their outermost shell.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is 5,6,7 or 8.
CONCEPT:
- The outermost shell of an electron can accommodate a maximum of 8 electrons.
- Elements having filled outermost shell are stable. So all elements tend to attain a stable state by completing its octet.
- Elements attain this stable form by losing or gaining electrons.
EXPLANATION:
- The effective nuclear charge experienced by the outer shell electrons in non-metals is very high.
- So they can accept electrons instead of losing electrons.
- Electonic configurations of some non-metals:
| Non-metal | Electronic configuration |
| Oxygen | 2,6 |
| Fluorine | 2,7 |
| Sulphur | 2,8,6 |
| Chlorine | 2,8,7 |
Additional Information
Chemical properties of non - metals
- Electronic configuration: Most of the non - metals have 4 to 7 electrons in their valence shells.
- Formation of ions: Non - metals tend to accept electrons in their valence shell to form negatively charged ions called anions.
- Reaction with oxygen: Non - metals combine with oxygen to form their oxides.
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