Chemical Bonding
Telangana Board · Class 10 · Physical Sciences
All formulas from Chemical Bonding in Telangana Board Class 10 Physical Sciences. Key equations, constants, and identities for board exam preparation.
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Formulas
Valency and Lewis Symbols
Valency of metal = its group number
Valency of non-metal = 8 - its group number
Ionic Bond and Ionic Compounds
Na(s) + 1/2 Cl2(g) → NaCl(s)
Mg(s) + Cl2(g) → MgCl2(s)
Na+(g) + Cl-(g) → Na+Cl-(s) or NaCl
Mg2+(g) + 2Cl-(g) → MgCl2(s)
2Na+(g) + O2-(g) → Na2O(s)
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