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Everybody knows calcium is the stuff in milk and bones chlorine goes into swimming pools and helium floats balloons.
What is the periodic table used for. The modern periodic table now provides a useful framework for analyzing chemical reactions and continues to be widely used in chemistry nuclear physics and other sciences. On entering your chemistry lab you are bound to find a big chart labeled as periodic table of elements hung over the wall for reference. In the periodic table used today the properties of the elements repeat in each period or row of the table. Here i shall explain what a periodic table is how its read and what is it used for.
Some discussion remains ongoing regarding the placement and categorisation of specific elements the future extension and limits of the table and whether there is an optimal form of the table. The rows periods and columns groups organize elements according to similar properties. The periodic table is a graphical collection of element data. You might not have used the periodic table but the chances are youll have seen it.
The table lists the chemical elements in order of increasing atomic number which is the number of protons in an atom of an element. Periodic table is a table that consist of elements. The periodic table is in columns and rows the columns section are called groups which is the number of electrons in outermost shell contains. Its known all over the world and when it was created it was a massive step forward for helping scientists to.
There are 118 elements in the periodic table. Periodic table in chemistry the organized array of all the chemical elements in order of increasing atomic number.
