In the boron group of elements there are three dense metals below aluminum you'll see have come to stand for gallium, indium and thallium. They're all extremely soft metals and as well, each has three electrons in its outer shell. G-A-I-N-N-T-L have come to stand for gallium, indium and thallium. A lump of solid gallium will melt in your hand, it's the softest butter I am led to understand. Bend a piece of indium, it's easy if you try As its crystals are deformed, they make a high-pitched cry G-A-I-N-N-T-L have come To stand for gallium, indium and thallium Murderers have used thallium salts, be aware If you have been poisoned, you will likely lose your hair G-A-I-N-N-T-L have come To stand for gallium, indium and thallium G-A-I-N-N-T-L have come To stand for gallium, indium and thallium