The most suitable property of atoms for determining the kind of bond that will take place between them is electronegativity. Electronegativity is a measure of how strongly an atom attracts electrons. Atoms with high electronegativity tend to attract electrons more strongly than atoms with low electronegativity.

When two atoms with different electronegativities interact, the atom with the higher electronegativity will tend to pull the shared electrons closer to itself. This creates a partial negative charge on the atom with the higher electronegativity and a partial positive charge on the atom with the lower electronegativity. The resulting unequal distribution of charge is called a polar covalent bond.

If the difference in electronegativity between two atoms is very large, the electrons will be completely transferred from the atom with the lower electronegativity to the atom with the higher electronegativity. This creates two oppositely charged ions, which are held together by an ionic bond.

The type of bond that will form between two atoms depends on the difference in their electronegativities. A polar covalent bond will form if the difference in electronegativity is small. An ionic bond will form if the difference in electronegativity is large.

Dr Murtadha Shukur thank you for your contribution to the discussion

One way to predict the type of bond that forms between two elements is to compare the electro negativities of the elements. In general, large differences in electro negativity result in ionic bonds, while smaller differences result in covalent bonds. The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms. This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons. One of the most important factors in determining the chemical properties of elements is the number of electrons in its outermost shell. The number of electrons in the outer shell determines the bonding characteristics of an element. The strength of a chemical bond is determined by the difference in electro negativity. Generally, the numbers of electrons are even. Covalent bonds can exist as a gas, solid, or liquid. There are three types of strong chemical bonds: ionic, covalent and metallic. For ionic bonding the particles are oppositely charged ions. For covalent bonding the particles are atoms which share pairs of electrons. For metallic bonding the particles are atoms which share delocalized electrons. An atom is composed of a nucleus and electrons that go around the former. The nucleus is composed of protons with a positive charge and neutrons without charge, and the number of protons determines the chemical properties of the atom. One way to predict the type of bond that forms between two elements is to compare the electro negativities of the elements. In general, large differences in electro negativity result in ionic bonds, while smaller differences result in covalent bonds. The nature of bonding between elements or atoms depends upon their outer electronic configuration. The ionic bonding is formed by the complete transfer of these valence electrons in between two bonded atoms. This type of ionic bond is formed in between metals and nonmetals.