GROUND-STATE ELECTRON CONFIGURATION OF ELEMENTS
n+l RULE So far we have considered the electron configuration of simple atoms. For complicated atoms which may contain many electrons and have many energy levels or orbitals, the ‘building …
Read MoreQualities Of A Good Précis
A good piece of précis should possess the following qualities; Conciseness: A good précis is always written in the fewest possible words. The writer expresses only the gist, …
Read MoreRules Of Précis Writing
The rules of précis writing are penned down as follows; Carefully read the passage: Before the writer starts making précis of the passage it should be read two or three …
Read MorePrécis Writing
https://www.observenigeria.com/wp-content/uploads/2016/07/Literature_Stock-Photo.jpgIntroduction: Précis writing is a very fine exercise in a reading; writing and practical life for those who have to carry on communication with others. Précis is neither a …
Read MoreBasic Definitions
Matter Anything that has mass and occupies space is called matter. Examples Water, wood, air, paper, gold etc. Classification of Matter All materials are either a substance or a mixture. …
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Atomic and Physical Properties of the Period 3 Elements
Atomic Properties Electronic Structures In Period 3 of the Periodic Table, the 3s and 3p orbitals are filling with electrons. Just as a reminder, the shortened versions of the electronic …
Read MorePeak value:
The maximum value of current in any direction,either positive or negative direction is called peak value.
Read MoreAuf Bau Principle
According to Auf Bau the while filling the shell will fill lowest energy orbit first 1s,2s,2p,3s,3p,4s,3d,4p,,,,,,,,
Read MoreHE ISENBERG UNCERTAINTY PRINCIPLE
the possibility of finding simultaneously and precisely the position and momentum of small particle(electron).
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