Strontium (Sr) – 38 Read More »
Rubidium (Rb) – 37 Read More »
Krypton (Kr) – 36 Read More »
Bromine (Br) – 35 Read More »
Selenium (Se) – 34 Read More »
Arsenic (As) – 33 Read More »
Germanium (Ge) – 32 Read More »
Gallium (Ga) – 31 Read More »
Zinc (Zn) – 30 Read More »
