Lī-chú kiat-ha̍p

Lī-chú kiat-ha̍p (離子結合) sī chi̍t khoán hoà-ha̍k kiat-ha̍p, thàu-kòe nn̄g ê ia̍h chē ê goân-chú ia̍h koaⁿ-lêng-ki sit-khì ia̍h tit-tio̍h tiān-chú liáu-āu, chiâⁿ-chò lī-chú āu hêng-sêng. Toà tian-tò tiān-o ê ki-thoân chi-kan chûn-chāi chēng-tiān khip-ín-le̍k.