level 12
0化学0
楼主
氟* (9号) https://tieba.baidu.com/p/2388955002
氯* (17号) https://tieba.baidu.com/p/2405545794
溴* (35号) https://tieba.baidu.com/p/2444171725
碘* (53号) https://tieba.baidu.com/p/2495765146
砹 (85号) https://tieba.baidu.com/p/2584035381