Ionic Radii:
The distance from the center of the nucleus and the outer most shell (valence shell) of an ion.
Covalent Radii:
It is one half of the distance between two same nucleur atoms. In hetro nucleur di atomic atoms it is equal to the sum of the two atomic radii.
Atomic Radii:
The distance from the center of the nucleus and the outer most (valence) shell of an atom.
Covalent Radius: It is average of length between the nucleus of two atoms joint with a covalent bond.
Suppose, there are two H atoms joint with covalent bonds forming an H2 atom. The covalent radius will be the average distance between the nucleus of the two Hydrogen atoms.
Metallic Radius: It is the radius of any metallic element. For instance, the radius of one atom of Zinc, copper, gold, Calcium or any other metal will be called the its metallic radius.
Compounds with covalent bonds form molecules. Compounds with ionic bonds form ionic lattices.
Molecules can be ionic OR covalent, but not both. PbI2 (lead iodine), however, is ionic.
Sodium hydroxide is an ionic compound which disassociates in to Na+ and OH- ions in solution.
Covalent. The electronegativity difference between N and O is small.
It is covalent due to the small electronegativity difference between hydrogen and sulfur.
Covalent compounds are more flammable when compared to ionic compounds.Ionic compounds are more soluble in water than covalent compounds.for more go to: difference between . net
Compounds with covalent bonds form molecules. Compounds with ionic bonds form ionic lattices.
Molecules can be ionic OR covalent, but not both. PbI2 (lead iodine), however, is ionic.
Sodium hydroxide is an ionic compound which disassociates in to Na+ and OH- ions in solution.
Covalent. The electronegativity difference between N and O is small.
It is covalent due to the small electronegativity difference between hydrogen and sulfur.
MgCl2 is an ionic compound. there is a large difference in electronegativity between Mg and Cl.
Ionic bonds are based on the electrostatic attraction of ions; covalent bonds are based on the sharing of electrons between two atoms.
If the electronegativity difference between two atoms is over 1.7, then ionic bond is formed and if it is below 1.7, then covalent bond is formed.
The major difference between the two is: - Ionic bonds occur between one metal and one non-metal (such as sodium and oxygen) - Covalent bonds occur between two non-metals.
It represents the boundary between what is considered to be an ionic or a covalent bond.
P2O5 is covalent compound as the difference in electronegativity between P and O is below 1.7