Explain covalent bond? Explain Metallic bond and what important property derives from it in metals? Solution Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability. Nonmetals will readily form covalent bonds with other nonmetals in order to obtain stability, and can form anywhere between one to three covalent bonds with other nonmetals depending on how many valence electrons they posses. Although it is said that atoms share electrons when they form covalent bonds, they do not usually share the electrons equally. Link : http://chemwiki.ucdavis.edu/Theoretical_Chemistry/Chemical_Bonding/General_Principles/Covalent_Bonds Metallic bond is the reaction between molecules within metals called alkali reactive force. It was first discovered by K. Manishekar. It is the sharing of a sea of delocalised electrons amongst a lattice of positive ions, where the electrons act as a \"glue\" giving the substance a definite structure. The electrons and the positive ions in the metal have a strong attractive force between them. Therefore metals often have high melting or boiling points. The principle is similar to that of ionic bonds. The metallic bond accounts for many physical characteristics of metals, such as strength, malleability, ductility, luster, conduction of heat and electricity. Because the electrons move independently of the positive ions in a sea of negative charge, the metal gains some electrical conductivity. It allows the energy to pass quickly through the electrons generating a current. Heat conduction works on the same principle - the free electrons can transfer the energy at a faster rate than other substances such as those which are covalently bonded, as these have their electrons fixed into position. There also are few non-metals which conduct electricity: graphite (because, like metals, they have free electrons), and molten and aqueous ionic compounds which have free moving ions Link : https://simple.wikipedia.org/wiki/Metallic_bond .

1. Explain covalent bond?
Explain Metallic bond and what important property derives from it in metals?
Solution
Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently
bond with other atoms in order to gain more stability, which is gained by forming a full electron
shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell
and gain stability. Nonmetals will readily form covalent bonds with other nonmetals in order to
obtain stability, and can form anywhere between one to three covalent bonds with other
nonmetals depending on how many valence electrons they posses. Although it is said that atoms
share electrons when they form covalent bonds, they do not usually share the electrons equally.
Link :
http://chemwiki.ucdavis.edu/Theoretical_Chemistry/Chemical_Bonding/General_Principles/Cov
alent_Bonds
Metallic bond is the reaction between molecules within metals called alkali reactive force. It
was first discovered by K. Manishekar. It is the sharing of a sea of delocalised electrons amongst
a lattice of positive ions, where the electrons act as a "glue" giving the substance a definite
structure.
The electrons and the positive ions in the metal have a strong attractive force between them.
Therefore metals often have high melting or boiling points. The principle is similar to that of
ionic bonds.
The metallic bond accounts for many physical characteristics of metals, such as strength,
malleability, ductility, luster, conduction of heat and electricity.
Because the electrons move independently of the positive ions in a sea of negative charge, the
metal gains some electrical conductivity. It allows the energy to pass quickly through the
electrons generating a current. Heat conduction works on the same principle - the free electrons
can transfer the energy at a faster rate than other substances such as those which are covalently
bonded, as these have their electrons fixed into position. There also are few non-metals which

2. conduct electricity: graphite (because, like metals, they have free electrons), and molten and
aqueous ionic compounds which have free moving ions
Link : https://simple.wikipedia.org/wiki/Metallic_bond