Complex sentence: Livermorium is expected to be near an island of stability centered around copernicium (element 112) and flerovium (element 114): the reasons for the presence of this island are however still not well understood.
Split into simpler sentences: Livermorium is expected to be near an island of stability centered around copernicium (element 112) and flerovium (element 114). The reasons for the presence of this island are however still not well understood.