Goân-chú-kà

Goân-chú-kà (原子價, Eng-gí: valence) sī chi̍t ē goân-chú kah khî-tha ê goân-chú kiat-ha̍p su-iàu ta̍t-kàu ê goân-chú sò͘-liōng.

Chú-iàu ê goân-chú-kà lia̍t-toaⁿ

Gôan-sò͘

Kim-sio̍k gôan-sò͘	Kì-hō	Chú-iau ê goân-chú-kà	Hui-kim-sio̍k gôan-sò͘	Kì-hō	Chú-iàu ê goân-chú-kà
Kalium ia̍h Chio̍h-hoe-sò͘	${\ce {K}}$	+1	Chúi-sò͘	${\ce {H}}$	+1
Natrium	${\ce {Na}}$	+1	Hut-sò͘	${\ce {F}}$	-1
Gîn	${\ce {Ag}}$	+1	Sng-sò͘	${\ce {O}}$	-2，-1
Calcium	${\ce {Ca}}$	+2	Iâm-sò͘	${\ce {Cl}}$	-1、+5、+7
Magnesium	${\ce {Mg}}$	+2	Chhàu-sò͘	${\ce {Br}}$	-1、+5、+7
Barium	${\ce {Ba}}$	+2	Ak-sò͘	${\ce {I}}$	-1、+5、+7
A-iân	${\ce {Zn}}$	+2	Chit-sò͘	${\ce {N}}$	-3、+3、+5
Aluminium	${\ce {Al}}$	+3	Lîn	${\ce {P}}$	-3、+5
Tâng	${\ce {Cu}}$	+1、+2	Liû	${\ce {S}}$	-2、+4、+6
Thih	${\ce {Fe}}$	+2、+3	Thoàⁿ-sò͘	${\ce {C}}$	-4、+2、+4
Manganese	${\ce {Mn}}$	+2、+4、+6、+7	Ke-sò͘	${\ce {Si}}$	-4、+4

Ion

Ion miâ Kì-hō Goân-chú-kà Chúi-sng hoà bu̍t ion ${\ce {OH-}}$ -1