alkali metal halide 

Statements about this table:
lithium flouride be a more ionic solid than lithium bromide
potassium bromide and lithium chloride have the same electronegativity difference
the greatest electronegativity difference be 3.2 of potassium fluoride
the 4 halogen be fluorine , chlorine , bromine , and iodine
chlorine be not a halogen
lithium
sodium
potassium
lithium
sodium
potassium
h a l o g e n s
fluorine
lif (3.0)
h a l o g e n s
chlorine
licl (2.0)
h a l o g e n s
bromine
libr (1.8)
h a l o g e n s
iodine
lii (1.5)
lithium
rubidium
caesium
lithium
rubidium
caesium
h a l o g e n s
naf (3.1)
kf (3.2)
h a l o g e n s
nacl (2.1)
kcl (2.2)
h a l o g e n s
nabr (1.9)
kbr (2.0)
h a l o g e n s
nai (1.6)
ki (1.7)