Chemical Bonding
Maharashtra Board · Class 11 · Chemistry
Quick revision notes for Chemical Bonding — Maharashtra Board Class 11 Chemistry. Key concepts, formulas, and definitions for last-minute revision.
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Key Topics to Revise
Introduction to Chemical Bonding
- Chemical bonds are forces that hold atoms together in compounds
- Two main types: ionic bonds (electron transfer) and covalent bonds (electron sharing)
- Outermost electrons (valence electrons) participate in bond formation
Kossel-Lewis Theory and Octet Rule
- Based on stability of noble gases with 8 valence electrons (octet)
- Atoms lose, gain, or share electrons to achieve noble gas configuration
- Hydrogen and lithium follow duplet rule (2 electrons like helium)
Ionic Bonding
- Formed between metals and non-metals with large electronegativity difference
- Complete electron transfer from metal to non-metal
- Electrostatic attraction between oppositely charged ions
Covalent Bonding and Lewis Structures
- Formed between non-metals by sharing electron pairs
- Each atom contributes one electron to shared pair
- Single, double, and triple bonds possible
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