Discuss availability of the lone pair of electrons to electrophile in dative bonding

Explanation:

Here, a balance between attraction between nucleus and electrons, and electron-electron, and nuclei-nuclei repulsion play role.

All chemical bonds are formed by overlapping of orbitals. If the electronegativity of the two elements forming the bond is very different (elements from the 1st ,2nd groups with elements of 7th group) then ionic bond are formed. If the electronegativities are more similar, then overlapping is stronger, and covalent bonds are formed.

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products

gravity causes stares to cluster i think so