<P> Noble gas compounds are chemical compounds that include an element from the noble gases , group 18 of the periodic table . Although the noble gases are generally unreactive elements , many such compounds have been observed , particularly involving the element xenon . From the standpoint of chemistry , the noble gases may be divided into two groups : the relatively reactive krypton ( ionisation energy 14.0 eV ) , xenon ( 12.1 eV ) , and radon ( 10.7 eV ) on one side , and the very unreactive argon ( 15.8 eV ) , neon ( 21.6 eV ) , and helium ( 24.6 eV ) on the other . </P>
<P> Noble gas compounds are chemical compounds that include an element from the noble gases , group 18 of the periodic table . Although the noble gases are generally unreactive elements , many such compounds have been observed , particularly involving the element xenon . From the standpoint of chemistry , the noble gases may be divided into two groups : the relatively reactive krypton ( ionisation energy 14.0 eV ) , xenon ( 12.1 eV ) , and radon ( 10.7 eV ) on one side , and the very unreactive argon ( 15.8 eV ) , neon ( 21.6 eV ) , and helium ( 24.6 eV ) on the other . </P>
name an element of group 18 which can form compounds
name an element of group 18 which can form compounds
xenon
xenon