Chapter 3.1 - Ionic bonds
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Suggest the type in thallium II bromide and state why the melting point is high (3)
Ionic bonding, • oppositely charged ions, • strong attraction between ions
State the type of bonding in lithium fluoride and why the mp is high (3)
Ionic bonding, • oppositely charged ions, • strong attraction between ions
Explain in terms of bonding and structure why KBrF has a high melting point
Ionic bonding, • oppositely charged ions, • strong electrostatic attraction
Suggest why the mp of sodium chloride is high
Ionic bonding, • oppositely charged ions, • strong electrostatic attraction
What is the formula for the compound sulfate ?
SO4^-2
What is the formula for the compound hydroxide
OH-
What is the formula for the compound nitrate ?
NO3
What is the formula for the compound carbonate and ammonium ?
Ammonium NH4+ , Carbonate CO3^-2
What are the properties of ionic bonds ?
• high mp bp, • conducts electricity when molten or dissolved in water, • brittle and shatter easily, • tend to dissolve in water
Why can ionic bonds conduct electricity when molten or dissolved in water ? (2)
• The ions separate, - Ions that carry charge are free to move in the liquid state
Define ions
Charged particles bcoz of the imbalance in protons and electrons