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What happens when sunlight is allowed to pass through a prism ?

When sunlight is allowed to pass through a prism, it splits into seven colors: Violet, Indigo, Blue, Green, Yellow, Orange and Red. Radiations coming from the Sun also contained radiation beyond red and beyond violet. These radiations are not visible to the human eyes.

By |2010-12-30T17:32:01+00:00December 30, 2010|Chemistry|Comments Off on What happens when sunlight is allowed to pass through a prism ?

What are the characteristics of a period ?

A horizontal row of elements in the periodic table is called a period. There are seven periods in the periodic table. Each period starts with Group 1(alkali metal group), and ends up with Group 18(noble elements group).

By |2010-12-30T17:17:57+00:00December 30, 2010|Chemistry|Comments Off on What are the characteristics of a period ?

How do the atomic properties vary with a period ?

Variations in the atomic properties of elements in any period are discussed below. Atomic number: In a period, the elements are arranged in the order of increasing atomic number. The atomic number increases by one unit atomic each element from left to right in a period.

By |2010-12-30T17:16:48+00:00December 30, 2010|Chemistry|Comments Off on How do the atomic properties vary with a period ?

How do the atomic properties vary in a group ?

All elements in a group generally show the same valence. From the values given in the above table, the valence of the main group elements is either equal to the number of valence electrons or 8-number of valence electrons.

By |2010-12-30T17:15:47+00:00December 30, 2010|Chemistry|Comments Off on How do the atomic properties vary in a group ?

Write an article on the biography of Asoka as a King

Asoka was not only great as missionary, but was also great as a ruler. The examples he showed as a king are rare in the annals of monarchs. The finest principles of his administration were announced in his Kalinga rock Edict. He proclaimed: “All men are my children.

By |2010-12-30T10:24:29+00:00December 30, 2010|History|Comments Off on Write an article on the biography of Asoka as a King
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