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Topic: Free Radicals? (Read 4919 times)
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Dan M
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Could someone explain the notion of free radicals to me? If I understand it right, they're listed in your cargo underneath the amount of free space you have.
What are they for/worth? 
thanks!
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Uffo
Zebranky food
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Gender: 
Posts: 6
My fibers grow turgid. Violent action ensues.
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Free Radicals are political refugees like yourself, on the lam from the Ur-Quan. Outcasts like Yehat loyal to the Queen, Black Spathi Squadron members, etc. If you obtain enough of them on key worlds, you can spread a network of underground resistance among the proletariat that, at a key moment, will rise up against the might of the oppressors. Plus, they're worth 25 RU's if you sell them to the starbase commander.
Don't ask about the "Super Fluids." Trust me. :)
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When Juffo-Wup is complete,
when at last there is no Void or Non,
when the Creators return,
then we can finally rest.
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*camper*
Guest
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Don't ask about the "Super Fluids." Trust me. :)
Superfluids are fluids that can flow without friction or viscosity. This would include liquid Helium-3... which, being really really cold, would not be found in Alpha Centauri.
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Casey Monroe
Guest
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Free Radicals are Exotic minerals, worth 25 RUs per kiloton.
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captain_kirk
*Many bubbles*
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Posts: 109
I love YaBB 1G - SP1!
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free radicals are radioactives
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Death 999
Global Moderator
Enlightened
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Gender:
Posts: 3874
We did. You did. Yes we can. No.
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Free Radicals? Aren't free radicals lone oxygen atoms? They're extremely harmful inside your cells, because, well, monatomic oxygen is very corrosive and likes to alter nucleic acids and refold proteins and stuff like that.
I don't know why that would be exotic, except that if you got a large amount of oxygen together it would probably vastly prefer to become diatomic. So having a kiloton of free radicals would be rather bizarre.
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AnonomouSpathi
*Many bubbles*
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Posts: 156
Spathi? What spathi? You're imagining, hunam.
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I'm pretty sure oxygen is a free radical, but it's not the only one. I believe that any ion that will take extra electrons to complete a shell level that manages to get away by itself is a free radical. Monoatomic Oxygen, if it can't pair up, will happily grab an electron away from other atoms to complete it's shell. If those electrons were doing something important (like say, forming a chemical bond in your DNA), this would be bad for you. I imagine things like SO4- and Cl- would also be qualified as free radicals.
(edit: mystery of the disappearing not solved, even if the rest of it was wrong anyway :-/ )
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« Last Edit: July 12, 2003, 12:32:31 pm by AnonomouSpathi »
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Crowley
Frungy champion
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Posts: 73
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I'm no chemistry of physics major, but I believe that definition is about right. Free radicals can be especially harmful to DNA, since when a free radical snatches an electron from another atom, that atom itself becomes a free radical and this can set off a long chain reaction.
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neo_b
Zebranky food
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Posts: 37
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Close, but not quite. There's a subtle difference between ions and free radicals.
(/long-winded explanation mode)
An ion forms when a molecule receives or loses an electron.
Ex. NaCl (table salt) in water becomes Na+ and Cl-.
First off, atoms like to have filled electron orbitals (in simplified terms, atoms like having pairs of electrons). Here, the sodium (Na) loses an electron to the chlorine (Cl) in order to get down to 10 electrons to empty its' last s orbital. Since it has one less electron than protons, it's written as Na+ (it has a positive charge).
The chlorine gains an electron to get up to 18 electrons, thus filling its' last p orbital. It is written as Cl- because it has an overall negative charge.
(note that ions usually only happen in solution [not counting supercharged plasma]- in this case if you take away all the water, the sodium and chlorine ions reform as table salt)
Free radicals, on the other hand, DO NOT involve an exchange of electrons. They are formed when a molecule has an unpaired electron (in other words, the molecule really wants to gain an electron). The free radical can strip an electron from most other molecules, and this quality makes it pretty bad to have in the body.
Ex. a chlorine molecule is broken down by sunlight into free radicals: Cl2 + (sunlight) --> 2Cl.
The resulting chlorine free radical molecules have neither lost or gained electrons, but they are no longer sharing an electron with each other, so they try to hunt another electron from another source.
Free radical chemistry does have it's upsides, though. It is can be used in polymerization reactions (i.e. polyethylene), I won't go into it, unless you really want me to; this is WAY too long already.
/end long-windedness
Bleh, I hope that wasn't too confusing.
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