 The xenon fluorides behave as both fluoride acceptors and fluoride donors , forming salts that contain such cations as XeF + and Xe 
 The xenon fluorides behave as both fluoride acceptors and fluoride donors , forming salts <a href='null_relcl' title='1'><mark>that</mark></a>contain such cations as XeF + and Xe 
The xenon fluorides behave as both fluoride acceptors and fluoride donors , forming salts contain such cations as XeF + and Xe