explain pls...
2007-02-04 21:48:20 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
elements were originally arranged by mass, however I wouldn't call this a "periodic table". Mendeleev is one of the first to arrange them differently and he did so by similar behaviours and physical properties into a table that was periodic. Keep in mind, not all the elements were discovered at that point. It's only in our modern understanding that it falls into line with our quantum mechanical view.
You can find his original list here:
http://web.lemoyne.edu/~giunta/EA/MENDELEEVann.HTML
2007-02-05 02:00:50 · answer #1 · answered by T.M.I. 2 · 0⤊ 0⤋
Original Basis
2017-02-24 06:24:29 · answer #2 · answered by ? 4 · 0⤊ 0⤋
The rows have to do with the atomic number, the number of protons from left to right. The columns are grouped together by similarities in chemical properties. Such as inert gasses, transitional metals, etc.
2016-05-24 17:37:32 · answer #3 · answered by MarilynAnn 4 · 0⤊ 0⤋
it is in groups of "like" materials, however I believe, gosh its been a while, woohoo, hehe..... I believe somewhat alphabetized and grouped from heaviest to lightest in elemental weight..?
Best I could do at 6 am day after super bowl, ohhhh, my head hurts, :/ ack! :) that'll learn me@!!!best D
2007-02-04 22:03:19 · answer #4 · answered by David W 2 · 0⤊ 0⤋
I believe that it is: Groups (columns) have the same valency, and elemets have atomic weights going up from left to right, top to bottom.
2007-02-04 21:54:34 · answer #5 · answered by blue5ire 1 · 0⤊ 1⤋
how am i supposed to know i am only 12 ps if u vote me best answer i will give u my email!!!
2007-02-04 23:07:39 · answer #6 · answered by Anonymous · 0⤊ 1⤋