00:01
Covalent bonds are formed by the sharing of electrons between two similar electron negative atoms.
00:06
Covalent bond can be two types, mainly non -polar and polar.
00:18
Covalent bonds can be mainly two types, they can be non -polar or polar.
00:24
What is the meaning of non -polar nature? for example, if you consider the two atoms, x and x or x and y, which are combining to form a covalent molecule.
00:40
If the electronegativity difference between them, the change in electronegativity, is between 0 .2 to 0 .5 value.
00:50
If the difference in electronegativity is between 0 .2 to 0 .5, then the molecule that is formed is said to be a non -polar covalent molecule.
01:01
And the bond between them is also non -polar covalent.
01:04
For example, h2, cl2, br2, i2, o2, n2, etc.
01:13
All these are said to be the covalent non -polar molecules.
01:18
Whereas if there are two atoms whose electronegativity difference is in between 0 .5 to 1 .6, these values are according to paulings scale, calling the scale of electronegativity calculation.
01:34
So, then the molecule is said to be a polar covalent molecule.
01:41
In this case, there is no charge separation.
01:44
But in this case, electropositive elements gets partial positive charge and electronegative element gets the partial negative charge...