Physical Properties:

- Aluminum is a silvery- white colored metal, very strong but light in weight, metallic, has good conductive properties, can sink in water even though it's relatively light, abundant in the Earth's crust.

- Indium makes a scream- like sound when bent, has an indigo color to the metal, it's really soft and workable at the touch.

- Boron has a high melting point, metal-like, can be crystalline at high temperatures, a good electrical conductor, gray and black in color.

- Thallium is heavy, blush-white in color, a metal, it resembles lead, it's very soft and easy to melt.

- Gallium is a blue-gray metal when solid, pure gallium is a silvery color, it's solid at room temperature, but with the slightest heat applied it melts.

Physical Properties