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How does an ion differ from an atom ?

When an atom gains one or more electrons, a negatively charged ion is formed. Positively charged ion is called cation, and the negatively charged ion is called anion. Thus, A cation (positively charged ion) is formed when an atom loses one or more electrons.

By |2010-12-30T17:11:11+00:00December 30, 2010|Chemistry|Comments Off on How does an ion differ from an atom ?

Are the properties of an atom and an ion similar ?

No. the properties of an atom of any element are quite different from those of its ion. Ion is formed due to loss or gain of electron from an atom. In doing so, each atom acquires an electronic configuration of the nearest noble gas.

By |2010-12-30T17:09:37+00:00December 30, 2010|Chemistry|Comments Off on Are the properties of an atom and an ion similar ?

Write a short note on Bohr’s model of the atom

In 1913, Niels Bohr put forward his theory regarding the structure of an atom. He retained the main features of Rutherford’s nuclear model and proposed some modifications. The proposed model is known as Bohr’s model. Its salient features are as follows.

By |2010-12-29T11:40:30+00:00December 29, 2010|Chemistry|Comments Off on Write a short note on Bohr’s model of the atom

Write short notes on molecules and atom ?

An atom is the smallest particle of an element that takes part in chemical reactions and maintains its chemical identity throughout all chemical and physical changes. Atoms of one element are different from the other elements.

By |2010-12-28T17:43:33+00:00December 28, 2010|Chemistry|Comments Off on Write short notes on molecules and atom ?
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