Flashcards in Chem4 Deck (24)
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Short =
height
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Long=
Little
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Electron Orbitals
Describes a region of 3-d space around a nucleus where the problem of finding an e- is greatest
S contains 1 orbitals
P contains 3 orbitals
D contains 5 orbitals
F contains 7 orbitals
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Orbitals occupancy
An orbital may be occupied by 0,1, or 2 e-
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First ionization energy
Pt trend
Increase ^ & >
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EA
Energy when a neutral atom gains an e- to form a (-) ion in the gas phase
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Ionic Radius
The average radius of an ion
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Electromagnetic Radiation
Energy traveling in the form of waves
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Below sea level
Above 100°C
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Above sea level
Below 100°C
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Crystalline solid
Particles (atoms, molecules, ions) are packed in a definite, repeated, geometrical pattern which extends out in 3-D
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Amorphous solid
Particles are packed irregularly, they lack structure, looks like a liquid frozen in time
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Ionic crystals
Forces holding crystals together: IONIC BONDS
properties: high melting point(often 800°C)
Water solubility : soluble
Conductivity:(l),(aq) can conduct
Examples: NaCl
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Molecular crystal
Forces holding crystals together: covalent compound
Properties: low melting point
Solubility: non soluble
Conductivity: poor
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Covalent network solids
Ex: Diamonds
Properties: high melting point
Solubility: insoluble In H2O
Conductivity: poor
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Metallic crystals
Metal nuclei: nuclei of metal is the point
VE
Properties: depends (melting point varies)
Solubility: non soluble
Conductivity: strong
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solid------------->liquid
Melting or fusion
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Liquid--------->gas
Boiling or vaporization
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Gas----------->Solid
Deposition
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Liquid--------------->solid
Sublimation
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Gas----------->liquid
Condensation
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Ideal gas law
PV=nRT
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Density
M
---
V
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