• Metal atoms lose electrons → cations (+)
• Non-metal atoms gain electrons → anions (−)
• Predict ion charges from electron configurations
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Mastery
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Start with the concept explanation, then practise to create mastery evidence.
2
Learning objective
2.1.2—Ionic bonding
New
• Electrostatic attraction between oppositely charged ions
• Binary ionic compounds: cation first, anion with "-ide" suffix
• Deduce formulas and names of ionic compounds, including common polyatomic ions
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Start with the concept explanation, then practise to create mastery evidence.
3
Learning objective
2.1.3—Ionic compounds
New
• 3D lattice structures, empirical formulas
• Properties: volatility, electrical conductivity, solubility
• Explain properties using lattice structure and ion mobility
0%
Mastery
0
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0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.