2006-09-26 07:22:19 · 11 answers · asked by isalkeld 2 in Science & Mathematics ➔ Chemistry
A noble gas (with the exeption of helium which has a valency of 2)
2006-09-26 07:24:34 · answer #1 · answered by Anonymous · 1⤊ 1⤋
Noble Gases
The noble gases are also called rare gas elements, and they all occur in nature as gases. The noble gases make up the group VIIIA which is the last column in the periodic table. The noble gases fulfill the octet rule by having a full outer level with 8 valence electrons. Therefore, they do not undergo chemical reactions because they do not accept any electrons.
2006-09-26 07:29:24 · answer #2 · answered by oklatom 7 · 1⤊ 1⤋
The highest valence/oxidaton state i could find for any element was 7. (Mn,Re,Cl)...No elements have an valence of 8. The noble gasses (inert gasses) have 8 valence electrons, is that what you mean?
Yea.... checked on Sodium perxenate..it does exist and it does have an oxidation state of +8 for the xenon... way to go, never heard of that before.
2006-09-26 07:27:50 · answer #3 · answered by The Cheminator 5 · 1⤊ 1⤋
Very few. Valency means how many electrons from the atom take part in chemical bonds. An Iron complex is one example the Xenate ,NaXeO4, quoted earlier is another.
2006-09-26 08:47:42 · answer #4 · answered by christopher N 4 · 0⤊ 1⤋
Neon (Ne) and Argon (Ar).
A valency of 8 implies that the substance has the octet structure on its outer most shell - it must be a noble gas.
2006-09-26 15:27:21 · answer #5 · answered by Kemmy 6 · 1⤊ 0⤋
I totally agree with Noble Gasses!
2006-09-26 08:08:28 · answer #6 · answered by mentor 5 · 1⤊ 1⤋
all the inert gases except helium, ie neon, argon, krypton, xenon all have valency of 8
2006-09-26 07:31:57 · answer #7 · answered by rickybellanco 2 · 1⤊ 2⤋
Oxygen
2006-09-26 07:23:42 · answer #8 · answered by Diamond in the Rough 6 · 0⤊ 4⤋
There is only one such element: xenon, in (for example) sodium perxenate (Na4XeO6).
2006-09-26 07:27:57 · answer #9 · answered by Anonymous · 2⤊ 0⤋
None
Th
2006-09-26 07:24:49 · answer #10 · answered by Thermo 6 · 0⤊ 3⤋