MARCH 28.—Supplementing my letter of March 20 on the remarkable optical properties of the alkali metals in the ultra-violet region, I am now able to state that my prediction that potassium would show ...

There are 118 elements known at present. There are similarities as well as differences are the properties of these elements on the basis of their, all the element can be divided three types: Metal; ...

The position of an element on the periodic table provides information about its properties. The majority of elements are metals and they are found on the left and in the middle of the periodic table.

Along with potassium, Sodium is one of the more common alkali metals, there being 28300 ppm in the earth’s crust, primarily as the carbonate, chloride or nitrate.

An alkali is derived from the Arabic word 'qali' means ' from the ashes'. As ashes are mixed with water used for cleaning products and are made of alkali materials. It is a basic hydroxide or ionic ...