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#1 2014-02-24 23:58:12

Agnishom
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From: The Complex Plane
Registered: 2011-01-29
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Non-periodic Property

Is there a property of an element that is not periodic? If any?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

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#2 2014-02-25 00:16:44

bob bundy
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Registered: 2010-06-20
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Re: Non-periodic Property

Are you asking "Is there a property of an element that does not arise from its position in the periodic table?"

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#3 2014-02-25 00:47:59

Agnishom
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Re: Non-periodic Property

Yep, that guy told me that the 'physical state' is one such property.


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

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#4 2014-02-25 01:12:18

bob bundy
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Re: Non-periodic Property

OK. I'll give it some thought.  I haven't thought of anything yet.

If by 'physical state' he meant whether it is solid, liquid, gas, and plasma, then I disagree.  These are not properties of the element since an element can have  its state changed but still be the same element.

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#5 2014-02-25 01:34:56

bob bundy
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Registered: 2010-06-20
Posts: 6,385

Re: Non-periodic Property

Got a couple. 

Isotopes are not shown in the periodic table.  An element may give off 'particles' eg. be radioactive.  You cannot tell by looking at the table.

Carbon may exist in many forms: diamond, graphite etc.  So for example how hard it is, is a property that is not governed by its position in the table, but rather by how the atoms are bonded to each other.

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#6 2014-02-25 02:01:59

Agnishom
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From: The Complex Plane
Registered: 2011-01-29
Posts: 16,708
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Re: Non-periodic Property

Can you really call the allotropies of carbon a property of an element


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

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#7 2014-02-25 02:05:49

John E. Franklin
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Registered: 2005-08-29
Posts: 3,562

Re: Non-periodic Property

Charles Janet thought Helium should be above Beryllium!
but he was a biologist.


igloo myrtilles fourmis

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#8 2014-02-25 02:11:55

bobbym
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From: Bumpkinland
Registered: 2009-04-12
Posts: 86,471

Re: Non-periodic Property

The color ( flame test ) of an element is a property. It can not be determined by the periodic chart.

The spectral lines of an element can not be determined by its position in the periodic chart.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#9 2014-02-25 04:36:51

bob bundy
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Registered: 2010-06-20
Posts: 6,385

Re: Non-periodic Property

hi

Agnishom wrote:

Can you really call the allotropies of carbon a property of an element

Dictionary.com wrote:

al·lot·ro·py   
noun Chemistry . 
a property of certain elements, as carbon, sulfur, and phosphorus, of existing in two or more distinct forms; allomorphism.

bobbym wrote:

The spectral lines of an element can not be determined by its position in the periodic chart.

You may be right, but as these lines depend on electron jumps, there may be a link.  Maybe it's just that no one has found it yet.

That could be your PhD thesis, Agnishom.

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#10 2014-02-27 01:57:51

Agnishom
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From: The Complex Plane
Registered: 2011-01-29
Posts: 16,708
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Re: Non-periodic Property

That could be your PhD thesis, Agnishom.

Thank you for the idea. But what if there isn't a link?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

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#11 2014-02-27 04:33:37

bob bundy
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Registered: 2010-06-20
Posts: 6,385

Re: Non-periodic Property

Then you investigate what does cause it.

B


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#12 2014-02-27 13:29:11

Agnishom
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From: The Complex Plane
Registered: 2011-01-29
Posts: 16,708
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Re: Non-periodic Property

Or in that case, I'll show how it isn't linked


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

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