a. Belongs to group VIIA(17) and period 3 Symbol Name b. The first element (reading down) in group VIIB(7) Symbol Name c
Posted: Mon Jul 11, 2022 2:04 pm
a. Belongs to group VIIA(17) and period 3 Symbol Name b. The first element (reading down) in group VIIB(7) Symbol Name c. The third element (reading left to right) in period 3 Symbol Name d. Belongs to group IIB(12) and period 6 Symbol Name