Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Indicar el elemento que falta en el grupo: Li, Na, _____, Rb, Cs, Fr
Right answer summary: part 1: K
Question state: todo
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Indicar el elemento que falta en el grupo: Li, Na, _____, Rb, Cs, Fr
Right answer summary: part 1: K
Question state: todo