The Periodic LawTable of contentsNo headersPlease add Reviews in the Comments Section below, there is no Poll currently. |
The Periodic LawTable of contentsNo headersPlease add Reviews in the Comments Section below, there is no Poll currently. |
1.Synopsis: This module describes the evolution of periodic law. Along with dates and contribution from different chemists, it provides a precise summary of the rules and trends of current day periodic table.
2. Keywords: Periodic Law (Google), Elements and Periods (Bing), Trends of Periodic Table (Alta Vista)
3. Review Details: It is good module pointing out the principal discoveries in setting the periodic table trends. It begins with its pioneers (Mendeleev and Meyer) and ends with relatively a recent contributor (Moseley) to build the backbone of inorganic chemistry.
4. Review Details: With the help of all the references given in the module, the reviewer was unable to find the source for the diagrams used in the module. The following site is probably used to retrieve the diagram (http://www.google.com/imgres?imgurl=http://upload.wikimedia.org/wikipedia/commons/b/bb/Mendeleev%27s_1869_periodic_table.png&imgrefurl=http://gv.wikipedia.org/wiki/Coadan:Mendeleev%27s_1869_periodic_table.png&h=1312&w=1067&sz=90&tbnid=Y05jxIBhDaCMSM:&tbnh=150&tbnw=122&prev=/images%3Fq%3Dmendeleev%2Bperiodic%2Btable&hl=en&usg=__5SBYudXcn0UcWunUBZ5LUaksFOQ=&ei=z1MZS8SIOIP4sgPE8fz7BA&sa=X&oi=image_result&resnum=4&ct=image&ved=0CA0Q9QEwAw) for Mendeleev’s periodic table. Likewise the reviewer was unable to find the connection between the diagrams of the X-Ray tube in the given references. Other than this, the entire module is informative and written with flawless English.
Fix One Error: As indicated above the entire module is well written and there is no spelling error.
More Info:
a) http://www.chemicool.com/
b) http://dwb.unl.edu/Teacher/NSF/C04/C04Links/www.fwkc.com/encyclopedia/low/articles/p/p019000875f.html
1)This module goes over the history of periodic table of how it was made with the contributions from bunch of scientists. This also includes the discovery of spectroscope which discovered more new elements. This module explains the placement of elements in Mendeleev’s periodic table when lots of other elements were yet to be found. It also shows a video of metals from alkali metal groups reacting with water. This module explains how the periodic table was created with the help of periodic law of looking at the elements characteristics and behavior with certain compounds and creating a pattern of different properties of elements. It also says elements in periodic table are arranged in increasing order of their atomic weights, but it’s not correct for all elements as for Potassium and Argon. For these kinds of problems they looked at the properties of the elements to place them correctly in periodic table.
2)Dmitri Mendeleev and Lothar Meyer (google): None
Mendeleev’s periodic table (google): None, Picture copied from (Wikimedia commons)
Picture of X ray tube copied from Wikipedia.
3)I didn’t find much plagiarism in this module. The youtube video was very helpful to understand that elements in same group reacts the same way yet gets more intense going down the group. This gives the idea that elements in periodic table are placed in certain pattern looking at their properties. For short term periodic table and long term periodic table, it can be more specific with the help of some diagrams or a picture of different periodic table. I am little confused with that part, because it says short term is the periodic table we use today and for long term it explains the same thing that is in the periodic table we use today. Other than that this module is easy to understand and well created.
4)Changes made: help discovered--> helped to discover
period table --> periodic table edited 17:23, 4 Dec 2009
Synoposis: This module discusses Mendeleev’s periodic law and gives lots of background information including many names and dates of how the period law progressed through time and how it evolved. There is a very helpful video from the internet inserted in the text that I would recommend watching.
Kewords: periodic law (google) none
Mendeleev (google): none
x-ray tube: (bing): picture copied, writing is fine though
Review Details: The module is pretty concise, with lots of information paraphrased very well. There are pictures though that are copied from websites and I’m pretty sure they are pictures that are copyrighted and I don’t think this is allowed. I like the way you bolded the important names, equations, etc. It makes them stand out and benefits the reader making it easy to scan when looking back at the module. Spelling and grammar is very good! Mistakes are few and far between, and the information appears accurate also.
Changes made: this previously did not have subject verb agreement. The properties and reoccur did not agree. I fixed this. "the given set of properties reoccurs every eight place."
1. Synopsis: Many scientists helped derived the properties of the periodic table. Each contributed in their own way that allowed Mendeleev to place all of their properties together and arrange it in a form of a periodic table. The periodic table is placed according to its atomic mass. The video showed the property of the alkaline metal is interesting. The periodic x-ray spectra is also an interesting concept to include.
2. Keywords: google: periodic law, Mendeev's periodic table, Henry G.J. Moseley
Figures: all are public domain.
3. Review Details: The module is neatly organized. It contains numerous facts on the subject and covers the formation of the periodic table through Mendeleev. The cathode and anode picture is quite big and should be re-cropped. The difficulty of the problem should have a wider range. The inclusion of the actual periodic table could help students better understand Mendeleev's to today's periodic table.
4. Mistakes:
Atomic number determine(S) the factor of chemical properties, atomic weights doesn't.
The table belowS shows us . . . edited 23:13, 4 Dec 2009
Tenzin: the short form periodic table is pretty the periods and groups. Long form gets more in depth so it will explain about nonmetals metals and the extended period at the bottom which is the Actinides and Lanthanides. Im sorry if it confuses you ill go change it right now but thank you for the suggestion.
Mariana: the pictures that i got are in public domain because i searched Mendeleev table images in public domain and it led me to a website which said "due to outdated copyright pictures are in public domain" or something like that so i am pretty sure that one is in public domain. The X-ray tube i also searched "x-ray tube images in public domain" which led me to a Wikipedia images and most Wikipedia images are in public domain but ill for sure recheck to make sure it is in public domain. Thank you very much
Duy: i really like your idea about the periodic table so i will add a periodic table in the short/long form, which goes back to tenzin confusions. With the periodic table it will help inform reader a bit better.
Tenzin: the short form periodic table is pretty the periods and groups. Long form gets more in depth so it will explain about nonmetals metals and the extended period at the bottom which is the Actinides and Lanthanides. Im sorry if it confuses you ill go change it right now but thank you for the suggestion.
Mariana: the pictures that i got are in public domain because i searched Mendeleev table images in public domain and it led me to a website which said "due to outdated copyright pictures are in public domain" or something like that so i am pretty sure that one is in public domain. The X-ray tube i also searched "x-ray tube images in public domain" which led me to a Wikipedia images and most Wikipedia images are in public domain but ill for sure recheck to make sure it is in public domain. Thank you very much
Duy: i really like your idea about the periodic table so i will add a periodic table in the short/long form, which goes back to tenzin confusions. With the periodic table it will help inform reader a bit better.
1. Synopsis: This module describes how the periodic table came about and how it works through periodic law.
2. The module is not ready for the next level. The coherence is lacking in terms of semantics. Errors include wordiness, run-ons, lack of transitions and misspellings.
3. The module is very rudimentary. It offers a basic idea of what periodic law is. However, there is vagueness as to what made the periodic law. What is electrochemistry? What is a spectroscope? What is meant when Meyer based his laws on atomic volume? The reader is left wondering what these scientific words are.
The figures provided are to make visualizing the descriptions of the text. If the anode figure is attached, other figures for electrochemistry or spectroscopy should be added. A comparison figure should contrast the long form periodic table to that of the short form. The figures are wrapped around the text which gives a clear idea of what the figure is referring to. What would be better is to have a caption that is captivating or to leave out the caption, rather than a reiteration of information. Another nice addition is to have a progressive development of the periodic table.
The table provided in the module aids in the development of the author’s point. The author conveys the coherence between what is said in the text and what is presented on the table, the arrangement of elements by atomic number and weight.
Other visuals such as that of the youtube clips aid in auditory and visual learning. The videos are helpful tools in making the concept clearer and more direct. Enderle’s video was helpful with respect to what type of problems would be expected on a test.
Overall, the text needs a bit of refining. Ideas and definitions have been laid out, but the tweaks are more in the details. The module is a good foundation.
4. The original text containing “due to the fact…Doberiner’s triad” had to be changed because the sentence did not make sense. The change is now, “Due to the fact that there was not enough elements found and that there was confusion between molecular weight and atomic weights, chemists never really understood the significance of Doberiner's triad.” edited 22:17, 28 Nov 2010
1. Synopsis:
The periodic law, proposed by Dmitri Mendeleev and Lothar Meyer, separately but both in 1869, orders elements by increasing atomic masses. Each scientist noted patterns of similar properties between particular elements. As a table was developed using the atomic mass numbers, the patterns between certain atoms are clear. This table is referred to as the Periodic Table because it is derived from the periodic law of increasing atomic masses.
2. Yes, the module is ready to go. Spelling is fine, and the outline at the top of the page is clearly followed by appropriate text.
3. Review Details:
Length- Overall appropriate. More details in the subheadings would improve this page, and it would still be within proper length constraints.
English- There has been great proofreading: the writing is straight-forward and flows well. There are no major grammatical errors.
Figures- There could be a more concise and clear visual representation for atomic number to point-out what the numbers around the element signify. A short example would suffice. Other figures included provide adequate visual representation. Also, the figures are not referenced by number in the text.
Tables- Good use of tables to provide examples and support the text. The tables are not references by number in the text. Therefore, it is unclear if the tables have been referenced.
Text- In general, it is well-written. However, I do have concerns that the set-up of the page could be better organized, which would make it easier to follow. For example, more sub headings. Some block paragraphs contain a lot of information and may be more captivating to a reader if they were systematically broken up into sections. There is also room for improvement in transitions between sections and paragraphs. Also, no contributor is listed.
4. Fix one mistake:
I thought the intro should talk about Mendeleev as well, so I included information about his work.
5. Plagarism checks:
http://www.articlechecker.com/
Matched Phrases Google Results Found
Total Matched Phrases / Total Submitted 0% (0/79)
http://www.dustball.com/cs/plagiarism.checker/
Text being analyzed
Result
periodic law was developed independently by Dmitri Mendeleev and Lothar
Possible Plagiarism
Mendeleev's table, elements with similar characteristics fall in the vertical
Possible Plagiarism
b)similar properties recur periodically when elements are arranged according to
Possible Plagiarism
video demonstrating an example problem using periodic law
Possible Plagiarism
Mendeleev's table is noteworthy because it exhibits mostly accurate values
OK
Similar properties recur periodically when elements are arranged according to
Possible Plagiarism
physicists Robert Willhem Bunsen and Gustav Robert Kirchoff discovered spectroscope
Possible Plagiarism
similar properties recur periodically when elements are arranged according to
Possible Plagiarism
I checked each of these links to Possible Plagiarism and they all referenced the webpage for the module; therefore, it is in the clear.
http://www.plagiarismchecker.com/url
The results shown include webpages with Meyer and Mendeleev, this check is in the clear.
6. Figure Check:
http://tineye.com
Some of the tables and figures are common images; however, when they have been entered into the text they contain no written Reference or Source. Therefore, I cannot tell if there is permission to use these figures, or is it is plagiarism. For example, the Periodic Table, the table can be found at www.techno-science.net
Tableau-periodique-des-elements.jpg http://www.techno-science.net/?onglet=news&news....
So did the contributor get permission from the webpage owner? I cannot rule out plagiarism because it is not clear. Also, there are not enough references listed to match each visual representation with a source.
On another note, I would expect that Dr. Enderle’s video would be referenced or copyrighted, but it is not.