2006-09-24 06:15:30 · 11 answers · asked by alix xx 1 in Science & Mathematics ➔ Chemistry
118.
There are many different ways, sometimes ingenious, of arranging the chemical elements according to which properties are of particular interest but that shown here is a standard form of the periodic table. The relative merits of various other periodic table organisations is still the subject of debate. Particularly useful versions include the following:
Extended periodic table
Janet periodic table
Mendeleev's original periodic table
ref :
http://www.webelements.com/
Ramesh
The Human Search Engine
http://www.alluwanted.com
uwanted.blogspot.com
2006-09-24 06:29:39 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Over 100 and new ones really are being discovered all the time. There was one discovered a couple of years ago, by combining Americanium something or other, with something else. It made a molecule that remained stable for less than a few milliseconds, but the fact that it had been made meant it could be added to the table. It either had atomic number 116, 117 or 119, I can't remember which.
2006-09-25 00:21:54 · answer #2 · answered by Katri-Mills 4 · 0⤊ 0⤋
As a bio-chem undergrad. i hit upon that i did no longer memorize the 1st 2 rows the table on objective. Memorization of the 1st 2 rows come from doing homework problems back and back back. by ability of the time you get by introductory and ordinary chemistry, you will a minimum of be attentive to the atomic extensive type and mass of H, N, C, and O interior the back of your head. in all probability even some different factors mutually with Cl, Fl, B, S, I, Na, Li, Fe..etc.. yet a number of my instructors has suggested, apart from some many times used factors, something of the periodic table could be used as kit, no longer memorized.
2016-10-17 21:34:37 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Hundreds if not thousands. The only thing is that we've not discovered them all yet. As time moves on and our own science improves we'll find the others. Its not a matter of creation but of discovery.
A century ago it was less than 100 known elements. By the 22nd century who knows, so the answer is hundreds if not thousands.
2006-09-25 03:20:28 · answer #4 · answered by ScottishWalrus 2 · 0⤊ 0⤋
there are 111 elements in the periodic table currently, but remember that new ones can be added.
2006-09-26 00:10:35 · answer #5 · answered by a fellow human 2 · 0⤊ 0⤋
Currently, 111 named elements, and 116 approved elements.
2006-09-24 06:21:38 · answer #6 · answered by Anonymous · 0⤊ 0⤋
111
2006-09-24 06:23:57 · answer #7 · answered by kpbunches 3 · 0⤊ 0⤋
109 but new elements are being discovered all the time
2006-09-24 06:24:28 · answer #8 · answered by wittylioness 1 · 0⤊ 0⤋
In my schoolbook there is only 110 of them :-(
2006-09-25 06:50:40 · answer #9 · answered by Stephen C 2 · 0⤊ 0⤋
There are about one hundred, thats what we got told in chemistry . . . lmao !!
2006-09-24 06:23:27 · answer #10 · answered by hello 1 · 0⤊ 2⤋