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bonding
IONIC BONDING
- lattice energy - required to^ separate topics^ for^ exam
a Mol Of^ Solid^ ionic compound into^ ◦ trends
gaseous ions^ ◦^ metal^ vs^ non^ -
- crystals have^ lower^ energy^ than^ metal
separated atoms^
◦ (^) electronic (^) config
- When the distance between (^) two atoms uration
mama ,,, μ,^ μ,,^ energy
μμa
- strong attraction^ between^ atoms^ : → (^) high (^) melting point
→ brittle
E- =
- charge ↑ (^) , lattice (^) energy ↑ ¥ 2 what determines a-
COVALENT BONDING^ a bond strength + polarity
◦ (^) position on the (^) periodic table
◦ electronegativity
◦ type of bond ° Charge ◦ (^) distance (^) between atoms ◦ (^) size
Crouching
HYDROGEN BONDING
- high (^) specific heat^ capacity of^ water
N - H
, F^
- H
, O^
hydrogen bonds
INDUCED DIPOLE^ INTERACTION
dipole of^ a^ dipole^ molecule^ can^ distort^ the^ electron
cloud Of^ a^ non-polar molecule
St
•\•5o••⑨
•,•5••-••!
LONDON DISPERSION FORCES
- instantaneous intermolecular attraction
between instantaneous dipole &^ induced^ dipole
polarizability →^ the^ ability of^ the^ electron^ cloud^ to^ distort
higher ,^ b.p is^ higher
↑ when surface area ↑
strength ↑^ molecular^ weight ↑
