Question

Write the three necessary conditions required for the formation of an electrovalent compound.

Answer 1

1. Low Ionization Potential: The metallic element must require very low energy to lose its outermost valence electrons and easily turn into a positive cation.
2. High Electron Affinity: The non-metallic element must have a high tendency to accept electrons, releasing a large amount of energy when converting into a negative anion.
3. Large Electronegativity Difference: The electronegativity difference between the two interacting elements must be high (typically greater than 1.7) to ensure a clean, unidirectional transfer of electrons.