Chem4 Flashcards
(24 cards)
Short =
height
Long=
Little
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
Orbitals occupancy
An orbital may be occupied by 0,1, or 2 e-
First ionization energy
Pt trend
Increase ^ & >
EA
Energy when a neutral atom gains an e- to form a (-) ion in the gas phase
Ionic Radius
The average radius of an ion
Electromagnetic Radiation
Energy traveling in the form of waves
Below sea level
Above 100°C
Above sea level
Below 100°C
Crystalline solid
Particles (atoms, molecules, ions) are packed in a definite, repeated, geometrical pattern which extends out in 3-D
Amorphous solid
Particles are packed irregularly, they lack structure, looks like a liquid frozen in time
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
Molecular crystal
Forces holding crystals together: covalent compound
Properties: low melting point
Solubility: non soluble
Conductivity: poor
Covalent network solids
Ex: Diamonds
Properties: high melting point
Solubility: insoluble In H2O
Conductivity: poor
Metallic crystals
Metal nuclei: nuclei of metal is the point
VE
Properties: depends (melting point varies)
Solubility: non soluble
Conductivity: strong
solid————->liquid
Melting or fusion
Liquid———>gas
Boiling or vaporization
Gas———–>Solid
Deposition
Liquid—————>solid
Sublimation
Gas———–>liquid
Condensation
Ideal gas law
PV=nRT
Density
V
Air =
O2 and N2
