15, 16, 17 eta 18 taldeko elementuen izenak eta ikurrak

14 . TALDEA - KARBONOIDEAK
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
15 . TALDEA - NITROGENOIDEAK
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
16 . TALDEA - ANFIGENOAK
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
17 . TALDEA : - HALOGENOAK
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
18 . TALDEA - GAS NOBLEAK
____________________ : ____________________
____________________ ; ____________________
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________
____________________ : ____________________