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Chemistry is
one of the disciplines of science. In chemistry, we will study atoms,
molecules, ions in elements or compounds and their structures, properties,
physical characteristics, behaviour, reaction with different chemicals.
Chemistry is the science of transformation of molecules and atoms. Chemistry
plays important role in day to day life. So study of chemistry is essential
just like other science branches like physics, biology, geology etc. Chemistry
application exist in field of medicine, industries manufacturing of
fertilizers, dyes, drugs etc., food and consumption items.
With the
help of chemistry, we can explain how the atom or molecule interact with each
other form a bonds and what are the characteristics bonds have and how many
type of bonding are there? Some of the types of bonding are:
1. Covalent Bonding
2. Ionic Bonding
3. Metallic Bonding
4. Hydrogen Bonding
5. Van der Waals force bond
A covalent bond is that type of bonding that formed
due to complete sharing of electrons pairs between atoms. This type of bonding
is also referred as molecular bonding. Ionic bonds are formed due to electrostatic attraction between two
opposite ionic charges and it is strong enough to hold the atoms. It is also
referred as electrovalent bond. Metallic bonding is responsible for holding atoms together of metallic substance with the
help of electrostatic attraction between the sea of free electrons and
positively charged ions. It’s like a small no. of positive charge ions in the
sea of electrons (quantity is much more of electrons as compared to positively
charged). A hydrogen bond is formed between the positively
charged hydrogen atom with highly negatively charged atoms. Its strength is not
much as covalent bonds because it is just a dipole-dipole attraction i.e. it
doesn’t form a complete bond rather it’s electrostatic attraction between
atoms. Van der Waals bonding is one of the weakest among other bonds.
Van der Waals doesn’t form a complete chemical electronic bond.
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Topic to be covered:
->Structure of atoms
->Periodic table
->Chemical bonding and molecular
structure (detailed)
->Laws of chemistry
->Chemical Reactions
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