Tag Archives | element

How time period influences fixed and variable cost?

Time plays an important role in taking economic decisions for production. The distinction between fixed cost and variable cost is very much influenced by the time period. According to Marshall, there are three time periods.

By |2011-03-11T17:34:31+00:00March 11, 2011|Notes|Comments Off on How time period influences fixed and variable cost?

How to write the electronic configuration of an element ?

The electronic configuration of an element is defined as follows: A stepwise distribution of electrons in different orbits (energy levels) of an atom is called its electronic configuration. To write the electric configuration of an element, one should proceed as follows.

By |2010-12-30T17:37:40+00:00December 30, 2010|Chemistry|Comments Off on How to write the electronic configuration of an element ?

How can the electronic configuration of an element explain its chemical reactivity ?

The electronic configuration of an element gives an idea about its reactivity. The elements having a completely filled outermost orbit (or shell) will be chemically inert (non-reactive). For example, the outermost shell in the case of helium (He), neon (Ne) and argon (Ar) are completely filled as shown below.

By |2010-12-30T17:34:55+00:00December 30, 2010|Chemistry|Comments Off on How can the electronic configuration of an element explain its chemical reactivity ?

What is atomic mass (A) of an element ?

The average mass of an atom of an element is known as its atomic mass. Atomic mass of an element is designated as A. Since, atomic mass is actual mass, hence it has the unit of mass, viz, gram, kilogram, atomic mass unit, etc.

By |2010-12-28T17:39:52+00:00December 28, 2010|Chemistry|Comments Off on What is atomic mass (A) of an element ?
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