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Ionic Bond Formation

Ionic Bond Formation. A) Explain why the lattice energy of silver bromide (903 kJ/ mol ) is greater than that of silver iodide (887 kJ/ mol ), given that they have a similar arrangement of ions . Hint: How does the charge of Br - and I - compare?

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Ionic Bond Formation

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  1. Ionic Bond Formation • A) Explain why the lattice energy of silver bromide (903 kJ/mol) is greater than that of silver iodide (887 kJ/mol), given that they have a similar arrangement of ions . • Hint: How does the charge of Br- and I- compare? • Hint: How does the size of Br- and I- compare? • Hint: If two charges are closer together, how is the force required to hold them together affected?

  2. Ionic Bond Formation Charge Ion 1 Charge Ion 2 Which pair of ions would have the greatest coulombic attraction in a solid compound ? A) Mg2+and S2- B) Mg2+and Se2- C) Mg2+and O2- Internuclear radius

  3. Lewis Structures: non-octet breaking • CH2O • Any common octet breaking atoms? • How many electrons are present? • What is the central atom? • Draw a skeletal structure • Add electrons: do you have enough to give all atoms octets? • Yes? Then minimize formal charges if needed. • No? Then add double bonds until you have enough electrons. • Label each with the formal charge.

  4. Lewis Structures: non-octet breaking • BH3NH3 • Any common octet breaking atoms? • How many electrons are present? • What is the central atom? • Draw a skeletal structure • Add electrons: do you have enough to give all atoms octets? • Yes? Then minimize formal charges if needed. • No? Then add double bonds until you have enough electrons. • Label each with the formal charge.

  5. Lewis Structures: non-octet breaking • N2O • Any common octet breaking atoms? • How many electrons are present? • What is the central atom? • Draw a skeletal structure • Add electrons: do you have enough to give all atoms octets? • Yes? Then minimize formal charges if needed. • No? Then add double bonds until you have enough electrons. • Label each with the formal charge.

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