IONIC BOND
Na GIVES · Cl TAKES · NaCl FORMS
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Making NaCl
Na
Cl
electrostatic attraction = IONIC BOND
sodium
chlorine
bond
1. Equations
Na → Na⁺ + e⁻
Cl + e⁻ → Cl⁻
Na⁺ + Cl⁻ → NaCl
Na⁺ = 2, 8
Cl⁻ = 2, 8, 8
(like a noble gas)
2. Properties of NaCl
• High melting point (801 °C)
• Conducts current when molten or in water
• Hard, brittle crystals
3. Remember
The metal gives an electron (+ ion)
The non-metal takes it (− ion)
MATRIC CHEMISTRY · CHEMICAL BONDING · PUNJAB BOARDS
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