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Reviewer: Nergaal (talk) 04:34, 8 March 2011 (UTC)
GA review – see WP:WIAGA for criteria
- Is it reasonably well written?
- A. Prose quality:
- B. MoS compliance for lead, layout, words to watch, fiction, and lists:
- Is it factually accurate and verifiable?
- A. References to sources:
- B. Citation of reliable sources where necessary:
- C. No original research:
- Is it broad in its coverage?
- A. Major aspects:
- B. Focused:
- Is it neutral?
- Fair representation without bias:
- Is it stable?
- No edit wars, etc:
- Does it contain images to illustrate the topic?
- A. Images are copyright tagged, and non-free images have fair use rationales:
- B. Images are provided where possible and appropriate, with suitable captions:
- Overall:
- Pass or Fail:
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Specific comments:
"s the second most electropositive of the non-radioactive alkali elements and melts at a temperature of 39.3 °C (102.7 °F)" - poor sentence; also say that the most elpos is Cs; I think correct is alkali metals not elements
repetition of "Like other" - use similarly to, etc
"and does not normally occur in living organisms" - link it better to the previous sentence
"property could be " - may prove useful
first para in compounds is unreferenced
radioactive87Rb - spacing
- "Natural rubidium is radioactive with specific activity of about 670 Bq/g, enough to expose a photographic film in approximately 30 to 60 days" - super interesting but needs citation and mention at what distance
how about non-natural isotopes?
any idea why is there so much Rb-87?
- Who is the main producer of the element? (country)
*"m limits its production to 2 to 4 tonnes per year." - in metallic form?
the history section is thin outside of the discovery information
- There are several points in the other sections but than we have it two times mentioned
asubchloride - spacing
with carbon - was it actually coal?
" The distilled rubidium was pyrophoric and the density differed less than 0.1 g/cm3 and the melting point by less than 1 °C from the now established values" - poor prose
"0.24 % rubidium oxide" - which one?
why both uses and appications?
Will do the last two sections a bit later. Nergaal (talk) 04:48, 8 March 2011 (UTC)
More:
the intro says the metal is soft twice, but the body does not say anything about that
the ionization energy (which is very low) should probably be included in the text
I suggest moving the first para of application to history since it fits there better if you rename the latter just applications
- "(that is, producing volumes of magnetized 3He gas, with the nuclear spins aligned toward a particular direction in space, rather than randomly)" should be moved out of the paranthesis
- " LPRO series from Datum" - wikilink? anyways, without explaining the acronym it is pretty useless to the reader
Rubidium-82 is first discussed in the aplications section, althoug stuff like lifetime and possibly the decay pathways shoudl be in teh isotopes section
btw, what does Rb-87 decompose to? i.e. decay pathway
- I think it is already in the isotope section.--Stone (talk) 00:15, 14 March 2011 (UTC)
wikilink strontium-82 and probably state its lifetime or rate of transformation into Rb-82
- "this element is kept" change that to metal
- "almost always has +1 oxidation state when dissolved in water" - two points: when it does not? and the oxidation state discussion should be above, not in the precautions section
"The ions are not particularly toxic, a 70 kg" => "The Rb+ ions are not particularly toxic as a "
"Rubidium was tested for the influence on manic depression" - should be in the uses section not the precautions one
"died after a few weeks" - might be nice to be a little less vague
Most of the issues I've listed are easily fixable so I will leave this review open for a few days. Nergaal (talk) 08:02, 8 March 2011 (UTC)
A few more things:
the term Rubidium standard should probably be mentioned
Rubidium chloride has some nice aplications - maybe borrow some?
- Borrowed only one the others are very special lab applications
RbOH is highly corrosive
flame test for Rb should be mentioned
- any idea what is the typical coordination number for Rb?
- File:Rubidium-oxide-unit-cell-3D-balls-B.png might be nice to use to show tetrahedral coordination
- The coordination chemistry turned out to be complex so I would not like to go into detail here.--Stone (talk) 23:26, 19 March 2011 (UTC)
Nergaal (talk) 08:18, 8 March 2011 (UTC)
I don't have sufficient time for a few days, but will take a closer look at the article after Monday. Nergaal (talk) 17:31, 20 March 2011 (UTC)
- No problem! I have also a lot of other things to do.--Stone (talk) 21:51, 20 March 2011 (UTC)
- Nice work! Although a few issues are left, most of them were fixed. Therefore, I am passing this article. Nergaal (talk) 21:44, 24 March 2011 (UTC)