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Author Topic: Chemistry P1 Dicussion  (Read 14653 times)

Offline killzone

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Chemistry P1 Dicussion
« on: June 13, 2009, 11:08:32 am »
Hey guys i want some one to tell me the answer about the question that said that an element had a proton number of 18 and the next one is element T or sth like that

WAS THE ANSWER ~!
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Offline aquarian93

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Re: Chemistry P1 Dicussion
« Reply #1 on: June 13, 2009, 11:10:14 am »
i sed one more shell or smthng

u noe cuz periods give u the number of shells
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Offline MR.BooMBastiC

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Re: Chemistry P1 Dicussion
« Reply #2 on: June 13, 2009, 11:10:37 am »
Quote from: bebo54 on June 13, 2009, 11:08:32 am
Hey guys i want some one to tell me the answer about the question that said that an element had a proton number of 18 and the next one is element T or sth like that

WAS THE ANSWER ~!

wat did u write???
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Offline aquarian93

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Re: Chemistry P1 Dicussion
« Reply #3 on: June 13, 2009, 11:14:32 am »
for argon being used in the filament, i chose the tick for it  being more abundant in air compared to helium, and the cross for it being less dense.

hw abt u guys?

and for the group 7 thing, i did increasing boiling and melting points, how abt u u guys?

and for the which is not the use of stainless steel, i said railway. how abt u guys?
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Offline MR.BooMBastiC

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Re: Chemistry P1 Dicussion
« Reply #4 on: June 13, 2009, 11:20:10 am »
4 the 1st ans.....its was cross croxx..
none of da above was correct....
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Offline aquarian93

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Re: Chemistry P1 Dicussion
« Reply #5 on: June 13, 2009, 11:21:28 am »
oh, bt argon is more abundant in air, 0.93%.
 bt helium is very less, 0.02%
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Offline MR.BooMBastiC

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Re: Chemistry P1 Dicussion
« Reply #6 on: June 13, 2009, 11:42:16 am »
really..........these gases compose of 0.8% of the air.....

so do u think they r abundant....????

78% nitro
21% oxygen
1% other gases....out of these 0.2% is co2!!!!!

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Offline IGs

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Re: Chemistry P1 Dicussion
« Reply #7 on: June 13, 2009, 11:45:18 am »
being more abundant is correct because argon is much more available than helium..so its much cheaper
and for gp7 m.p and b.p do increase thats why they change from gases to solids
and for stainless steel ofcourse it's railway lines because it was written that its very expensive so according to logic its right
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Offline MR.BooMBastiC

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Re: Chemistry P1 Dicussion
« Reply #8 on: June 13, 2009, 11:45:47 am »
i think maybe u misunderstood da q..
they said argon is used in filament lamps...so that they can last 4 a longer time......
which of da following properties is suitable for its use.....

so da options they gave wr totally irrelevant to its use...
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Offline MR.BooMBastiC

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Re: Chemistry P1 Dicussion
« Reply #9 on: June 13, 2009, 11:47:45 am »
Quote from: IGs on June 13, 2009, 11:45:18 am
being more abundant is correct because argon is much more available than helium..so its much cheaper
and for gp7 m.p and b.p do increase thats why they change from gases to solids
and for stainless steel ofcourse it's railway lines because it was written that its very expensive so according to logic its right

no dude.....ARGON IS USED BECAUSE IT IS UNREACTIVE[INERT]

ITS NOT used because it is abundent or denser...tec..
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Offline Triple_A

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Re: Chemistry P1 Dicussion
« Reply #10 on: June 13, 2009, 11:50:29 am »
wateva ppl............just enjoy ur vacation ppl...................who cares of it wz abundant or denser 8)
we finished exams..so dont let ur wrong answers affect ur vacation 8)
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Offline IGs

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Re: Chemistry P1 Dicussion
« Reply #11 on: June 13, 2009, 11:50:39 am »
so why dont they use xenon if its about unreactivity
its just because its abundant so it would be the cheapest
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Offline MR.BooMBastiC

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Re: Chemistry P1 Dicussion
« Reply #12 on: June 13, 2009, 11:52:22 am »
xenon is bright...so its used in car lights.... :P :P


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Offline IGs

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Re: Chemistry P1 Dicussion
« Reply #13 on: June 13, 2009, 11:53:44 am »
no man its bright only when a current is passed through it
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Offline MR.BooMBastiC

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Re: Chemistry P1 Dicussion
« Reply #14 on: June 13, 2009, 11:57:31 am »
of course.......i was kiddin.....y dont u ask the chemical engineers
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