I have a Chemistry project and one of the easier question I thought would be this, but I can't find it on the internet anywhere in an understandable form.
Thanks
2007-08-01 02:15:30 · 10 answers · asked by HarryREDUX 2 in Science & Mathematics ➔ Chemistry
It's because the elements are arranged in 'periods', ie. repeating sets. In the chemical elements the period is the number of outermost electrons in a shell, or covalence. Mendeleev organised them by chemical properties, where elements which react in similar ways were grouped in the same column. For example, all the group 8 elements are noble gases - they all have a full outer shell and so don't react easily. There were gaps in it to begin with, but he managed to predict the existance of several unknown elements. It gets slightly more complicated when you consider transition metals - where the differences are in the inner shell electrons - and lanthanides and actinides (I forget how they are arranged...) but that's the basic principle.
2007-08-01 02:26:11 · answer #1 · answered by kangaruth 3 · 0⤊ 0⤋
This Site Might Help You.
RE:
Why is the Periodic Table called the Periodic table?
I have a Chemistry project and one of the easier question I thought would be this, but I can't find it on the internet anywhere in an understandable form.
Thanks
2015-08-07 07:59:30 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The Periodic table is defined as A tabular arrangement of the elements according to their atomic numbers so that elements with similar properties are in.
Periodic means occurring at regular intervals, and as such, the columnar arrangement of the elements is "periodic" in design.
2007-08-01 02:24:36 · answer #3 · answered by Marvinator 7 · 2⤊ 0⤋
In 1869, the Russian chemist Mendeleev noted that the repeating patterns of behavior could be arranged in a sequence of elements giving rise to the "Periodic Table" of the elements.
2007-08-01 02:26:50 · answer #4 · answered by ferrari455m 2 · 1⤊ 0⤋
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Because it is layed out in a table format. A table has two, maybe more definations 1 : A piece of furniture consisting of a smooth flat slab fixed on legs 2 : A systematic arrangement of data usually in rows and columns for ready reference
2016-04-03 04:10:53 · answer #5 · answered by Edeltraud 4 · 0⤊ 0⤋
Simple, it is called that because of the periodic "law" .
which recognises that many properties of the chemical elements are periodic functions of their atomic number (the number of protons within the element's atomic nucleus). The periodic table is an arrangement of the chemical elements ordered by atomic number in columns (groups) and rows (periods) presented so as to emphasize their periodic properties.
2007-08-01 02:25:14 · answer #6 · answered by Father Ted 5 · 0⤊ 2⤋
The rows (horizontal rows) are called periods. As you move right in certain periods, the properties of the elements gradually change.
2007-08-01 02:24:19 · answer #7 · answered by Handsome Chuck 5 · 0⤊ 0⤋
it is called a periodic table because every elements is discover in a different periods.......
2007-08-01 04:04:18 · answer #8 · answered by animelover 2 · 0⤊ 0⤋
It's looked at periodically; and it's better than calling it the kitchen table!
2007-08-01 03:29:20 · answer #9 · answered by Modern Major General 7 · 0⤊ 1⤋
Because chemical and physical properties of elements have a repeating pattern. (Dive Integrated Chemistry Physics)
2016-03-01 06:32:37 · answer #10 · answered by JAG 1 · 0⤊ 0⤋