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Argon

Argon

(Science: chemistry, element) a substance regarded as an element, contained in the atmosphere and remarkable for its chemical inertness.

Origin: gr. Inactive.


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Can someone check my Radiometric Dating Problems?

... #2: 3.9 / 1.3 = 3 Half-life periods so: 1/2 *1/2 * 1/2 = 1/8 of the potassium would remain. 1 - 1/8 = 7/8 of the potassium would have decayed to argon.

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by Chroma
Sun Jan 24, 2010 6:11 am
 
Forum: General Discussion
Topic: Can someone check my Radiometric Dating Problems?
Replies: 5
Views: 2039

Can someone check my Radiometric Dating Problems?

... the charcoal? My answer was 45,840 yrs. 2. The half life of potassium 40 is 1.3 billion years. How much of that potassium 40 would have decayed to argon after 3.9 billion years? My answer was 3/8.

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by QuantumMoron
Sun Jan 24, 2010 12:10 am
 
Forum: General Discussion
Topic: Can someone check my Radiometric Dating Problems?
Replies: 5
Views: 2039

Re: How is water vapor a greenhouse gas?

... percentages on Wickipedia (by weight). Looks like CO2 is small compared to water. Nitrogen (N2) 78.084% Oxygen (O2) 20.946% Water (H2O) >1% Argon (Ar) 0.934% Carbon dioxide (CO2) 0.0383 % Neon (Ne) 0.001818 % Helium (He) 0.000524 % Methane (CH4) 0.0001745 % Krypton (Kr) 0.000114% Hydrogen ...

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by bobc2
Mon Sep 14, 2009 2:55 am
 
Forum: General Discussion
Topic: How is water vapor a greenhouse gas?
Replies: 8
Views: 5487

Re: Bird-Dinosaur News

... not equipped why would they go ahead and date the rocks and send them back? The bottom line is that there is no way to tell if a rock did not have argon (or lead) in it from the beginning of it's formation. Because a rock has lead 206 and uranium 238 in it does not prove the lead is a daughter. ...

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by AFJ
Wed Jul 08, 2009 2:51 am
 
Forum: Evolution
Topic: Bird-Dinosaur News
Replies: 46
Views: 56357

Re: Bird-Dinosaur News

... "attempt to poke holes." Mr. Astus. This is a significant finding. If you read this then you understand that there was already argon in the very recent samples. The point is that when a ratio is given by these labs, they only give a ratio--there is no way they can tell you how ...

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by AstusAleator
Sun Jul 05, 2009 8:38 pm
 
Forum: Evolution
Topic: Bird-Dinosaur News
Replies: 46
Views: 56357
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