Metal hydrides are ionic, covalent or molecular in nature. Among LiH, NaH, KH, RbH and CsH, the correct order of increasing ionic character is

Metal hydrides are ionic, covalent or molecular in nature. Among LiH,

1.	Metal hydrides are ionic, covalent or molecular in nature. Among LiH, NaH, KH, RbH and CsH, the correct order of increasing ionic character is
Answer» `LiH gt NaH gt CsH gt KH gt RBH` `LiH LT NaH lt KH lt RbH lt CsH` `RbH gt CsH gt NaH gt KH gt LiH` `NaH gt CsH gt RbH gt LiH gt KH` Solution :Ionic character INCREASE as the size of the atom increases or the ELECTRONEGATIVITY of the atom decreases : `LiH lt NaH lt KH lt RbHlt CsH`