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The layout of the table indicates various properties of the chemical elements using a logical grouping by row and column.
The Periodic Table is laid out so that reading from left to right and top to bottom, each chemical element is listed in the order of atomic number, which is the number of protons in the atomic nucleus of that element. At the top of the table, Hydrogen (H) is element (atomic) number 1, to the right Helium (He) is element number 2, Down one row and from left Lithium (Li) is element number 3 and so on. Thus those elements near the top of the table such as Hydrogen (H) are the lightest and those near the bottom of the table such as Uranium (U) are the heaviest. Elements towards the bottom of the table are more likely to be radioactive.
The column structure of the table indicates similar chemical properties for the elements in that column. The first column from the left contains the group known as the Alkali Metals and all of these elements have a single electron in the outermost electron orbit around the atomic nucleus, known as the "outer shell". This electron configuration determines the types of chemical reaction which may occur with these elements. The second column from the left contains the group known as the Alkaline Earth Metals and all these elements have two electrons in the outer shell and hence have similar chemical properties. The column on the far right contains the elements known as the "Noble Gases" that have their outer shell "filled" with electrons and these elements do not generally react chemically with other elements. Thus those elements that appear in any one column will have similar chemical properties to each other and the same type of electron configuration in the outer shell.
Most of the elements in the table are metals and appear towards the left and bottom of the table. The non-metal elements are towards the top and right of the table. The area of the table between the metals and non-metals includes the elements known as "semiconductors" such as Silicon (Si) and Germanium (Ge).
What else can I help you with?
What is a chart that lists all the known elements?
It is called the Periodic Table of Elements.
How does the periodic table summarize elements?
In the periodic table chemical elements are orderd in periods and groups.
Where are all the elements on earth listed?
The periodic table.
What group is co3 in the periodic table?
CO3 is not placed in periodic table. Only elements are arranged in periodic table.
What are elements and the periodic table?
An element is a substance that cannot be broken into simpler substances by chemical methods, such as Neon or Oxygen.The periodic table contain all known chemical elements.
What is a chart that list elements?
The "Periodic Table of the Elements". See related link below.
Name all the elements?
All of the elements are on the periodic table of the elements. Refer to the related links for a printable periodic table.
What is the name of the table of elements?
It is named The PERIODIC TABLE. The periods being the horizontal rows The groups being the vertical columns.
What is a chart that lists all the known elements?
It is called the Periodic Table of Elements.
How many elements are listed in periodic table?
There are 53 Elements in the Periodic Table.
What are the elements in the periodic table are classified as?
Elements of the Periodic Table
What are the first seven elements in the periodic table?
Refer to the related link.
First ten elements of periodic table?
Refer to the related link.
Elements on very first Periodic Table?
Yes, there were elements on the first periodic table. I believe that there are still elements on the periodic table.
How many elements are you periodic table?
118 elements are in the periodic table of elements; some of them are still unnamed (January 2013).
Is thiamin on the periodic table of elements?
periodic table is an arrangement of elements. Thiamin is not an element and hence not on the periodic table.
Which can be found on a periodic table elements compounds or mixtures?
Elements are found on periodic table. Compounds are not present on periodic table. The table does not contains mixture.Elements can be found on a periodic table. Compounds can be made by bonding two or more elements. But they are not depicted on the periodic table.
