👉 Selenotropism is a phenomenon in which certain elements or compounds tend to be more stable at high temperatures than they are at low temperatures. This property is due to differences in electron density and ionization energy between different elements. For example, sulfur (S) has a higher electron density compared to oxygen (O), which makes it harder for electrons to move from the atom to another element in a molecule or solid. As a result, sulfur has a lower melting point than oxygen at high temperatures
