Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

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'

I'm not crazy, my mother had me tested.

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,659

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

Bob

Children are not defined by school ...........The Fonz

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

Offline

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'

I'm not crazy, my mother had me tested.

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,659

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

Children are not defined by school ...........The Fonz

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

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,659

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

Children are not defined by school ...........The Fonz

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

Offline

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'

I'm not crazy, my mother had me tested.

Offline

**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,588

Charles Janet thought Helium should be above Beryllium!

but he was a biologist.

**igloo** **myrtilles** **fourmis**

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 105,700

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.****If it ain't broke, fix it until it is.****No great discovery was ever made without a bold guess. **

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,659

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

Offline

That could be your PhD thesis, Agnishom.

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

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,659

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

Offline

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

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

Offline

Pages: **1**