Complex sentence: Unbihexium (IPA:) is an unsynthesized chemical element with atomic number 126 and symbol Ubh, of interest because it is in the hypothesized island of stability.
Split into simpler sentences: Unbihexium (IPA:) is an unsynthesized chemical element with atomic number 126 and symbol Ubh. It is of interest because it is in the hypothesized island of stability.