Primarygun Posted October 27, 2004 Share Posted October 27, 2004 All atoms of noble gases have their outermost shells completely filled with electrons. Anyone have idea? Link to comment Share on other sites More sharing options...
Sayonara Posted October 27, 2004 Share Posted October 27, 2004 Can you clarify the challenge? Link to comment Share on other sites More sharing options...
Sorcerer Posted October 28, 2004 Share Posted October 28, 2004 You mean ALWAYS? Link to comment Share on other sites More sharing options...
budullewraagh Posted October 28, 2004 Share Posted October 28, 2004 i would agree..... as long as they are not cationic Link to comment Share on other sites More sharing options...
MolecularMan14 Posted October 28, 2004 Share Posted October 28, 2004 lol, what exatly is the challenge here? Not every one of them have all full, just enough to be inert. Link to comment Share on other sites More sharing options...
Primarygun Posted October 28, 2004 Author Share Posted October 28, 2004 I found both information from the internet. One says yes , the other says no. Link to comment Share on other sites More sharing options...
YT2095 Posted October 28, 2004 Share Posted October 28, 2004 the octet is complete if that`s what you mean. and is the challenge to guess what the challenge is, and if so, I WIN ) Link to comment Share on other sites More sharing options...
Sorcerer Posted October 28, 2004 Share Posted October 28, 2004 Helium has 8 electrons now!!!! WOW Link to comment Share on other sites More sharing options...
Gilded Posted October 28, 2004 Share Posted October 28, 2004 "Helium has 8 electrons now!!!! WOW" Rofl Yeah, as MolecularMan said, "just enough to be inert". Link to comment Share on other sites More sharing options...
YT2095 Posted October 28, 2004 Share Posted October 28, 2004 LOL, like any rule there`s always the exception ) I was tired, leave me alone! anyway Helium does have a full outer shell Link to comment Share on other sites More sharing options...
Gilded Posted October 28, 2004 Share Posted October 28, 2004 "I was tired, leave me alone! :P" Being tired is my favourite excuse for being wrong, too. Link to comment Share on other sites More sharing options...
YT2095 Posted October 28, 2004 Share Posted October 28, 2004 well hey, nobody`s Purfikt! ) but yeah I did make a mistake in not considering helium, and yes I was and still am very tired, no excuse I know, just fact. sorry about that. Link to comment Share on other sites More sharing options...
Sorcerer Posted October 28, 2004 Share Posted October 28, 2004 Hehe, Im tired and drunk *yawn* - night. Link to comment Share on other sites More sharing options...
(*disco*) Posted October 28, 2004 Share Posted October 28, 2004 outer shells include s and p shells to be full you must have 2 electrons in s, and 6 in p for a total of 8 this is why they are 'stable' or inert some only have an s shell, therefore they need only 2 = He Link to comment Share on other sites More sharing options...
budullewraagh Posted October 28, 2004 Share Posted October 28, 2004 by "some" he means only helium Link to comment Share on other sites More sharing options...
5614 Posted October 28, 2004 Share Posted October 28, 2004 i think that the basic school sentence summary is good enough! "... they all have outer shells" summarises it all quite neatly. Link to comment Share on other sites More sharing options...
(*disco*) Posted October 29, 2004 Share Posted October 29, 2004 ^^ uh...every element has an outer shell. some do not have all the electrons, which would result in a charge. ie/ sodium. has a charge of +1. it requires an electron to complete its outer shell, hence why you find it as salt. http://en.wikipedia.org/wiki/Niels_Bohr http://en.wikipedia.org/wiki/Bohr_model Link to comment Share on other sites More sharing options...
budullewraagh Posted October 30, 2004 Share Posted October 30, 2004 sodium doesn't always have a charge of +1. it can have a neutral charge and chemically can have a -1 anionic charge when mixed with anhydrous liquid ammonia Link to comment Share on other sites More sharing options...
TWJian Posted November 12, 2004 Share Posted November 12, 2004 Huh?I thought that helium has only two electrons,not 8(duplet).However,it still got full electron shells because the the s shell only requires two to be full.Btw, sodium does not require an electron to complete its outer shell.It needs 7.(highly unlikely).Therefore,it donates the outer electron.The shell beneath is already an octet.Hence it have an electrovalency of +1(excess of 1 electron)This is its normal electrovalency.it tends to lose the excess electron, Link to comment Share on other sites More sharing options...
budullewraagh Posted November 12, 2004 Share Posted November 12, 2004 right, helium has 2 electrons. it is the one exception. sodium actually requires one electron to complete its outer shell because its outer shell is an s. thats why you dont see Na-7 anions in solution with liquid anhydrous ammonia. it loses its electron because of our lovely equation: X=((0.31(n+1+or-c))/r)+0.50 n=valance electrons c=formal valance charge on atom. is positive or negative depending on polarity of charge. r=covalent radius Link to comment Share on other sites More sharing options...
TWJian Posted November 14, 2004 Share Posted November 14, 2004 Yep.Correct.Sodium is hard to form a +7 anion because the orbital created will be at all higher energy level(ie:not stable).Similiarly,helium is monoatomic because the teorically He2 moelcule will have two bonding electrons and two anti bonding electrons at different sigma orbitals,cancelling each other out.A He2 +1 molecule is possible though.Upper obital(up electron)Lower obital(up+down electron)It will be stable molecularly but now electically.(its positive) Link to comment Share on other sites More sharing options...
budullewraagh Posted November 14, 2004 Share Posted November 14, 2004 i take it you mean a -7 anion... Link to comment Share on other sites More sharing options...
TWJian Posted November 16, 2004 Share Posted November 16, 2004 Right,of course.Typos..sorry. Link to comment Share on other sites More sharing options...
chadn Posted November 16, 2004 Share Posted November 16, 2004 There is one more characteristic of the Noble gasses that seems to have not been mentioned. The Noble gasses are that way because not only are their outer shells filled, but they're neutral at the same time. So what you have is happy little atoms who are not very sociable with the rest of the atomic world. My highschool teacher would refer to atoms with their outer shells full as happy. Link to comment Share on other sites More sharing options...
chadn Posted November 16, 2004 Share Posted November 16, 2004 There is one more characteristic of the Noble gasses that seems to have not been mentioned. The Noble gasses are that way because not only are their outer shells filled, but they're neutral at the same time. So what you have is happy little atoms who are not very sociable with the rest of the atomic world. My highschool teacher would refer to atoms with their outer shells full as happy. Link to comment Share on other sites More sharing options...
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