molecular compounds vs ionic compounds

Formation of ionic compounds..

The electrostatic field of an ion is nondirectional.Each positive ion attracts several negative ions around it depending upon its size or radius and vice-versa ,resulting in a three dimensional solid aggregate called an ionic crystal in which oppositely charged ions alternate in regular,..

The general properties of ionic compounds a..

Physical state Ionic compounds do not exist in the form of independent molecules but exist in the form of ions in crystalline solids, according to X-ray studies. These ions are arranged to form the crystal lattice in definite geometric pattern. For example, in NaCl ..

Rock Salt (or NaCl) Type of Structure - fig 2..

Determination of the Molecular Formula of a Compound - The empirical formula of the compound is written. The empirical formula mass is calculated by adding the atomic masses of all atoms present in the empirical formula. The molecular mass or molar mass is ob..

The empirical formula of the compound is written. The empirical formula mass is calculated by adding the atomic masses of all atoms present in the empirical formula. The molecular mass or molar mass is obtained from experiment or from the vapour density relationship: h..

Covalent compounds are formed by the combination between two different non-metals. While writing the formula the less electronegative nonmetal element is written on the left hand side, whereas, the more electronegative non-metal is written on the right hand sid..

Steps - Write the symbols of the elements which form the compound. Below the symbol of each element write down its valency. Cross over the valencies of the atom..