________ introduced electron dot symbols to denote the valence electrons in an atom.

The theory of chemical bonding reveals that the formation of a chemical bond involves a decrease in the _________ of the system.

According to __________ rule, during the formation of a molecule, an atom of a particular element gains, losses or shares electrons until it acquires a stable configuration of eight electrons in its valence shell.

_________ is some sort of interatomic attraction which holds the two atoms together.

All the Noble gases except helium possess__________ configuration for their valence shell.

What is the electronegativity (pauling scale) of Mg?

What is the electronegativity (pauling scale) of Sr?

 What is the second ionization enthalpy(kJ mol^-1) of Ca?

During the formation of a chemical bond, atoms combine together by gaining,losing or sharing electrons in such a way that they acquire stable noble gas configuration.

_________ bond between two atoms in the electrostatic force of attraction which holds together the ions of the combining atoms formed by the complete transfer of one or more electrons from electropositive to electronegative atom.