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Atomic number

Atomic number

(Science: chemistry) symbol z. The number of protons in the nucleus of an atom and also its characteristic atomic number. The atomic numbers of the known elements form a complete series (periodic table) from 1 (hydrogen) to 103 (lawrencium).


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DUMAS METHOD OF DETERMINING MOLAR MASS OF A VOLATILE LIQUID

... chemistry wrong. Those carbon compounds are tricky. You're not forming atomic oxygen (O), however; it's molecular (O2) oxygen, also called diatomic oxygen. This is important since any calculation of the number of moles of gas will reflect the amount of molecular oxygen, which is ...

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by alextemplet
Wed Oct 22, 2008 6:13 pm
 
Forum: General Discussion
Topic: DUMAS METHOD OF DETERMINING MOLAR MASS OF A VOLATILE LIQUID
Replies: 11
Views: 4055

help....

... of an oxygen atom (Be sure to include the location, charge, and number of subatomic particles). f. A nitrogen atom has 7 protons, and the most common isotope of nitrogen ...

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by iheartremmy15
Sun Sep 14, 2008 6:29 pm
 
Forum: General Discussion
Topic: help....
Replies: 1
Views: 619

Evolution - Natural Selection FLAWED?

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by Thermopylae
Sun Feb 18, 2007 3:52 pm
 
Forum: Evolution
Topic: Evolution - Natural Selection FLAWED?
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by Nadas Moksha
Sat Dec 09, 2006 1:23 am
 
Forum: Human Biology
Topic: The Fiber Disease
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by msc
Sun Dec 03, 2006 12:46 am
 
Forum: Human Biology
Topic: The Fiber Disease
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