1: Xe is a large atom. Its electrons are far from the nucleus and are less tightly held. The ionization energy of Xe is 1170 kJ/mol. read more
Xenon is the heaviest nonradioactive noble gas, and so it is the easiest one to form compounds, some of which are fairly stable at room temperature and pressure. Radon would be even more easy to form compounds with, but as a highly radioactive element with no isotope having a half-life longer than 3.8 days, it is extremely difficult to work with. read more
Xenon, with a larger atomic mass, is able to form compounds (with fluorine, for example, to form XeF6). read more
Xenon does not react directly with oxygen. Xenon reacts with water molecules in order to form xenon oxides. The process of radioactive decay is the deterioration of an atom through the instability of isotopes. The instability of isotopes forms the neutrons into a proton and an electron, therefore changing the entire element. read more