IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => Subject Doubts => GCE AS & A2 Level => Sciences => Topic started by: xim7007 on September 05, 2010, 12:30:37 pm
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Which is the poorest conductor among metals?
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Am not 100% confident about it but i believe it is lithium since it has the least number of electons among metals :P
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Mercury ::)
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Mercury ::)
Hmm......really??
i mean do you know the reason why is it soo???
It will surely help :)
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Poorest heat conductor = lead (Lead has a 15% conductivity level)
and
Poorest Electricity conductor = Tin (Tin has a 9% conductivity level)
Hope this helps King!
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Sure........thanks for your info br0 :)
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Sure........thanks for your info br0 :)
Yeah! Anytime!
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Hmm......really??
i mean do you know the reason why is it soo???
It will surely help :)
My bad Mercury has the lowest THERMAL conductivity :)
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My bad Mercury has the lowest THERMAL conductivity :)
Why are u telling mercury as a poorest conductor of heat, only because it is the only liquid metal at room temperature and it is a heavy metal?
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No, poorest heat conductor is LEAD! ;)
If it's heat conductor it's definitely Mercury. My life on it :P Electrical conductor, then maybe lead possibly. I'm not sure.
Lowest thermal conductivity measured is that of mercury.
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If it's heat conductor it's definitely Mercury. My life on it :P Electrical conductor, then maybe lead possibly. I'm not sure.
Lowest thermal conductivity measured is that of mercury.
If so, then Neptunium has a K value of 6.3 W/mK and Mercury has a K value of 8 W/mK.
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I dont intend to argue with you.........
But why do you say lead is the poorest metal conductor??
Is it because it is the metal with the most covalent characteristics???
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If so, then Neptunium has a K value of 6.3 W/mK and Mercury has a K value of 8 W/mK.
Neptunium is radioactive man! Leave it to rest.
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I dont intend to argue with you.........
But why do you say lead is the poorest metal conductor??
Is it because it is the metal with the most covalent characteristics???
Because of it's very high density and thickness.
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Because of it's very high density and thickness.
But it's conductivity is still higher than Mercury. Mercury it is if he's talking about the thermal conductivity.
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But it's conductivity is still higher than Mercury. Mercury it is if he's talking about the thermal conductivity.
why do u say mercury is the poorest?
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why do u say mercury is the poorest?
both of ya are debating for the poorest heat conductor.
I am asking electrical conductor??? ???
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why do u say mercury is the poorest?
Experimentally it has been found that it's conductivity is lowest. The reason behind this all its electrons fill up it's s,p,d,f orbitals and resists electrons from being removed. It has the tendency to behave as a noble gas.
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Experimentally it has been found that it's conductivity is lowest. The reason behind this all its electrons fill up it's s,p,d,f orbitals and resists electrons from being removed. It has the tendency to behave as a noble gas.
This sounds fair enough for me. Though being in Group 4 it should have 4 electrons in its outermost shell and i doubt it will be as stable as a noble gas with that.
Am not here to prove you wrong.......i just want to understand :)
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This sounds fair enough for me. Though being in Group 4 it should have 4 electrons in its outermost shell and i doubt it will be as stable as a noble gas with that.
Am not here to prove you wrong.......i just want to understand :)
It won't be as stable. Ofc not. But it's a d-block element and has no empty d orbitals.
The electronic configuration of Hg is [Xe] 4f14 5d10 6s2
Hence it usually exhibits an oxidation state of +2.
it is much stable compared to other metals.
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How come it is a d-block element when it has 6s2 as outermost shell??
Yeah i understand it will be much stable than other metals.......although not like noble gases ;)
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http://en.wikipedia.org/wiki/D-block
If you're doing A levels, make sure your basics are clear mate. You don't want trouble in the long run.
I just said it comes close to noble gases, resisting removal of electrons. Ofc it's not one. It tends to be.
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Yupz......i understood that..............Thanks for your trouble :)
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But it's conductivity is still higher than Mercury. Mercury it is if he's talking about the thermal conductivity.
Does that explain why it is used in thermometers? Of course along with the fact it's a liquid at normal temperatures.
The temperature of the body is not 'conducted' therefore giving accurate results for the measurement of temperature...? :-[
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Poorest electrical conductor as I told u, Tin (Sn). :D
Fine no argument, but if the shells s,p,d,f are wholly filled, then too it has the charge +2, and if it behave as a noble gas, compounds containing noble gases are introduced by psychics (i mean the scientists). i.e. XeF6.
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Poorest electrical conductor as I told u, Tin (Sn). :D
Fine no argument, but if the shells s,p,d,f are wholly filled, then too it has the charge +2, and if it behave as a noble gas, compounds containing noble gases are introduced by psychics (i mean the scientists). i.e. XeF6.
I said it tends to...it resists removal of electrons
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Poorest electrical conductor as I told u, Tin (Sn). :D
Fine no argument, but if the shells s,p,d,f are wholly filled, then too it has the charge +2, and if it behave as a noble gas, compounds containing noble gases are introduced by psychics (i mean the scientists). i.e. XeF6.
XeF6 is just as SF6.
i mean the same electron arrangement.
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I said it tends to...it resists removal of electrons
so it doesn't matter on just one property!
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so it doesn't matter on just one property!
It's also a liquid at room temperature. Conduction is higher when particles are closer together.
@masterkey- yup same structure.
@Vin-I didn't get you :\
@deadly king- You're welcome :)
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It's also a liquid at room temperature. Conduction is higher when particles are closer together.
For SOLID - Lead
and
For LIQUID - Mercury!
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http://en.wikipedia.org/wiki/D-block
If you're doing A levels, make sure your basics are clear mate. You don't want trouble in the long run.
I just said it comes close to noble gases, resisting removal of electrons. Ofc it's not one. It tends to be.
I just started my AS levels! ;D
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I just started my AS levels! ;D
I know :)
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I know :)
How come you know? :o :(
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How come you know? :o :(
I've been around too long :P in disguise :P >:D
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How come you know? :o :(
We ALL know ;)
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Yeah........i am aware of that too :P
Garfield is completely right there dudes.
Indeed Mercury is the worst metal heat conductor ( Thermal conductivity = 8.30 W·m-1·K-1).
Ref : http://en.wikipedia.org/wiki/Mercury_%28element%29
However Bismuth has a lower thermal conductivity value ( 7.97 W·m-1·K-1) but Bismuth is radioactive although its half-life is so huge (1.9 x 1019yrs) that sometimes it is considered to be stable!
Ref : http://en.wikipedia.org/wiki/Bismuth
Lead has a much greater thermal conductivity value (35.3 W·m-1·K-1)
Ref : http://en.wikipedia.org/wiki/Lead
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Yeah........i am aware of that too :P
Garfield is completely right there dudes.
Indeed Mercury is the worst metal heat conductor ( Thermal conductivity = 8.30 W·m-1·K-1).
Ref : http://en.wikipedia.org/wiki/Mercury_%28element%29
However Bismuth has a lower thermal conductivity value ( 7.97 W·m-1·K-1) but Bismuth is radioactive although its half-life is so huge (1.9 x 1019yrs) that sometimes it is considered to be stable!
Ref : http://en.wikipedia.org/wiki/Bismuth
Lead has a much greater thermal conductivity value (35.3 W·m-1·K-1)
Ref : http://en.wikipedia.org/wiki/Lead
yes, and of the poorest electrical conductor is TIN! ;)
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yes, and of the poorest electrical conductor is TIN! ;)
Actually the poorest electrical conductor is stainless steel. However being an alloy of chromium, it is not a pure metal.
So this is why TIN is considered to be the poorest electrical metal conductor!
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Actually the poorest electrical conductor is stainless steel. However being an alloy of chromium, it is not a pure metal.
So this is why TIN is considered to be the poorest electrical metal conductor!
I know the reason too!! :D
Other alloys are also poor conductors! ;)
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I know the reason too!! :D
Other alloys are also poor conductors! ;)
Indeed br0 :)
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Indeed br0 :)
Today is Wednesday, Your day in the forum, Enjoy! :D
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Today is Wednesday, Your day in the forum, Enjoy! :D
Hahahaha..........your sense of observation is really accurate :P
Yeah......i had been enjoying since early morning......and am still enjoying :)
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Hahahaha..........your sense of observation is really accurate :P
Yeah......i had been enjoying since early morning......and am still enjoying :)
U get on Wednesdays and Sundays!
r u online from morning?? :o :o