Essay or Write up on impact of periodic table elements in human welfare in 500 to 800 words
Answers
Answer:periodic table is helpful in understanding the chemistry of elements and compounds.
It contains eighteen groups. Each group contains the elements which have similar properties. So if we study one element of the group then we can extrapolate tge properties of other elements in the same group.
It also helps to understand the metallic and non metallic character of the elements. The elements on the left of periodic table are metals and on the right are non metals.
Periodic table also helps to understand the electrical conductivity of elements. Metals are generally good conductor of electricity. The electrical conductivity increases down the group.
Melting points and boiling points can also be predicted with the help of periodic table.
Periodic table also devides elements into four blocks that are s block p block dblock and f block. This give idea about metallergical uses of elements.
Periodic table can be used to predict the type of bonding between two elements. The type of bonding depends on theelectronegativity difference between two atoms. This difference of electronegativity can be predicted by using periodic table.
The reactictivity of elements can be guessed by their position in the periodic table. The elements on the left are very reactive metals their reactivity decreases in periods and increases down the group. The elements on the right that are hroup 18 elements are called noble gases as these are least reactive.
Periodic table also help in understanding the properties of compounds of elements like their solubilty in water.
Periodic table also helps in understanding the oxidation state amd valemcies of the elements.
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