Types of Chemical Bonds
The attractive force which has the ability of holding various constituent elements like atoms, ions, molecules, etc. together in different chemical species is termed as a chemical bond. Chemical compounds are dependent on the strength of chemical bonds between its constituents. Stronger the chemical bond, more will be the stability in the chemical compounds. Hence, it can be said that bonding defines the stability of chemical compounds.
Polarizability In Organic Chemistry
Polarizability refers to the ability of an atom/molecule to distort the electron cloud of neighboring species towards itself and the process of distortion of electron cloud is known as polarization.
Coordinate Covalent Bonds
A coordinate covalent bond is also known as a dative bond, which is a type of covalent bond. It is formed between two atoms, where the two electrons required to form the bond come from the same atom resulting in a semi-polar bond. The study of coordinate covalent bond or dative bond is important to know about the special type of bonding that leads to different properties. Since covalent compounds are non-polar whereas coordinate bonds results always in polar compounds due to charge separation.
Describe the procedure of Lewis structures for polyatomic ions?
Lewis structure of a molecule is the representation to show the valence electrons along with the bonds around atoms of the molecule. Bonds are represented by line while the electrons are represented as dots around the atoms. Octet of all atoms are fulfilled except hydrogen.
Steps followed to consider the draw the Lewis structure for polyatomic ion is as follows:
Consider the example of ammonium ion to understand the procedure to determine the Lewis structure.
In step 1, calculate the total valence electrons on the polyatomic ion. Total valence electrons is the sum of valence electrons of each element multiplied by the number of that element present in the compound. In case of polyatomic ions, the number of negative charges is added to the total valence electron and the number of positive charges is subtracted from the total valence electron.
Each nitrogen atom has five valence electrons and the hydrogen atom has one valence electron. Subtract one electron due to the presence of charge.
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