Predict whether the following bonded atoms are ions or molecules. Iodine and sodium
Bonding character between atoms can be predicted with electronegativity properties application. Electronegativity is how strongly an atom attracts electrons to itself when bonded with another atom. According to the table Pauling electronegativity, the electronegativity difference for sodium and iodine atoms is 2.66 – 0.93 = 1.73. That corresponds to the ions formation.