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2006-12-22 05:12:27 · 7 answers · asked by Harrington G 1 in Science & Mathematics Chemistry

7 answers

Polarized normally refers to a molecule which has + and~poles often due to a distortion in the symmetry of the molecule. Water H2O can be shown to be polar when you electrically charge a comb by rubbing it on your pullover.On moving it to a thin stream of water from the tap the water bends towards the charged comb.The polarity of water is such that it will easily dissolve strong ionic substances like salt NaCl.It takes 800degC to melt salt yet it easily dissolves in water.It can also refer to 2 or more people with opposing views as well as having other meanings in context.You really need to give context.

2006-12-22 05:33:32 · answer #1 · answered by Anonymous · 0 0

as in a polar bond? or polar molecule?
Some elements are more electronegative than others ( they attract electrons more strongly) because of their size and their valence shell. Smaller atoms with shorter distance between their electrons and the positively charged nucleus, will attract electrons more strongly than larger atoms even if they have the some number of protons and electrons. The electrons are moving around the nucleus rapidly and may not always be evenly distributed around the nucleus. If there is a gap in the distribution other electrons are able to get close enough to the protons for the protons to attract them.
Elements such as Flourine, Bromine and Chlorine have a valence shell of 7 electrons. They are one electron short of having a full valence shell and will attract other electrons. The closer an element is to having a full shell the more electronegative it is. Flourine is the most electronegative element on the table due to it's size and valence shell. The Pauling scale is the most commonly used. Florine is assigned a value of approxamately 4.0 and all other elements have lower values.
The difference in electronegativity is important to bonding. A covalent bond forms when two atoms share one or more electons. the sharing allows both atoms to have full valence shells. A polar covalent bond forms when one atom is more electonegative than the other causing the electron to be more strangly attrated to the atom with greater electronegativity. Water is a good example Oxygen is more electronegative then hydrogen and when they share electrons the eletrons spend more time near the oxygen aton than the hydrogen. This causes the entire morecule to have 2 positive ends (hydrogens) and one negative end. These positive and negative ends attract other water molecules holding water together.

2006-12-22 05:44:13 · answer #2 · answered by Gwenilynd 4 · 0 0

Polarization or polarisation can mean:

Polarization, a property of light and other electromagnetic waves
Polarization (electrostatics), the vector field that results from permanent or induced electric dipole moments in a dielectric material
Polarization of an Abelian variety, in the mathematics of complex manifolds
Polarization identity in mathematics is a property of inner product spaces.
Polarization (politics), the process by which the public opinion divides and goes to the extremes
Polarization (psychology), the process whereby a social or political group is divided into opposing sub-groups
Racial polarization, the process whereby a population with varyingly diverse ancestry is divided into distinct, homogenous racial groups

2006-12-22 05:21:14 · answer #3 · answered by Andreja K 3 · 0 0

The polarized light microscope is designed to observe and photograph specimens that are visible primarily due to their optically anisotropic character



Polarization, also called wave polarization, is an expression of the orientation of the lines of electric flux in an electromagnetic field (EM field

2006-12-23 22:40:05 · answer #4 · answered by star_aries 2 · 0 0

When two people or two points of view are the complete opposite of each other; named after the North and South pole of the earth or the poles of a magnet, one pulling and one pushing.

2006-12-22 05:22:51 · answer #5 · answered by Gary H 4 · 0 0

Pure white.

2006-12-22 05:17:02 · answer #6 · answered by ? 4 · 0 0

being left in the artic for a sustained period

2006-12-22 05:18:23 · answer #7 · answered by cereal killer 5 · 0 0

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