Ionic valency... not so easy
How many valence electrons does N a X + have?
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1 solution
Dictionary introduced: "Carbon has 4 valencies."
According to s p d f of 2 8 1, 2 8 8 1 and etc, Na is of 1 for 2 + 8 + 1 = 11
2 + 4 = 6 for Carbon. Your definition of valency isn't what I had learnt.
Na+ is of 2 8, but I don't realize that we should describe its valency as zero.
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Sir, I do understand that on your part your're absolutely right....
But this is what I thought is appropriate, The electron configuration of Sodium "positive" atom (ion) is the same as Argon (as you've mentioned). And you are well aware that valency of Argon is ' 0'. And hence the valency of Sodium "positive" atom (ion) is '0'.
But sir after what you've said, I will go through it once more...
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I was not very certain initially but I think I know the answer now. What is your conclusion?
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@Lu Chee Ket – Sir.After I have gone through the question, (I've also asked my teacher), sir I concluded that the answer I posted before was correct(according to my teacher). So I have concluded that my answer is reasonable...
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@Sravanth C. – Just make sure that you get marks when you attend examinations. Thanks!
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@Lu Chee Ket – yes sir! I will answer according to my teacher in the exams... But, I will surely get to know the correct answer... I had great fun talking to you sir! thank you very much.
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@Sravanth C. – https://answers.yahoo.com/question/index?qid=20080724062217AAFxAex http://chemistry.about.com/od/electronicstructure/a/orbitalnumbers.htm
@Lu Chee Ket – Sir, if you have time to spare, please answer to the doubt below: Why does 4s come before 3d in the s, p, d and f system? Please reply sir.....
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@Sravanth C. – The first 4 letters are based on the first letter of the description of their spectroscopic lines
s = sharp
p = principle
d = diffuse
f = fundamental
the rest are in alphabetical order...g,h,i, etc
Physicists who were studying the electromagnetic spectrum tried to describe the emission lines as they correlated with energy states involved. They described the emission lines as sharp, principal, diffuse, and fundamental.
http://www.answers.com/Q/What does spdf mean in_chemistry
Here is a place which could answer your curious questions. Once you get to my age, you must be able to understand more. Get to know people who is in charge of stating these for answers.
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@Lu Chee Ket – thank you sir! for your valuable information
@Sravanth C. – Ne: 2, 8
Ar: 2, 8, 8
1 s [u d]
2 s [u d] 2 p [u d u d u d]
3 s [u d] 3 p [u d u d u d]
4 s [u d] 3 d []
I noted that 3 d is actually situated on period 4 on periodic table. The type of electron cloud seem to belong to inner layer but its coverage of emergence is exceeding radius of layer 4. From characteristic which makes a behavior of an element, scientists tried to fit solution to quantum mechanics to suit valencies of elements despite their complexity of existence.
Actually, we can find the answer of why 4 s before 3 d from the periodic table. The arrangements are actually represent s, d, p and f; two left most columns are just s, therefore 4 s comes before 3 d, if we accept solution of scientists.
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@Lu Chee Ket – Thank you once again sir!
"In chemistry, the valence (or valency) of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules."
Quoted from the internet
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and sir, according to your quote I feel that the combining power of Na+ ion is 0.
First, Natrium is nothing but sodium. And sodium has 11 electrons in it. i.e. 1 valence electron. And therefore Na+ ion has given 1 electron.
Which tells us that it has got an octet condition. And hence 0 valency
so simple .......................................................................