Aluminium is just on the metal side of the border between metals and metalloids, so it is not considered to be a metalloid. Rather, it's placed in a class called simply "Other Metals". read more
Aluminium is just on the metal side of the border between metals and metalloids, so it is not considered to be a metalloid. Rather, it's placed in a class called simply "Other Metals". Other metals in this class (no pun intended) include;- Tin, Lead, Bismuth, Gallium, Indium and Thallium. read more
Aluminum is NOT a metal. It does NOT conduct heat. Think about it. It is used as an insulator on homes because it does NOT conduct heat. It is not a good conductor of electricity either. It is a metalloid. read more
The metalloids on the right hand side of the stair-step line are considered nonmetals and the metalloids on the left-hand side of the stair-step line are considered metals. Of the elements in 3A only boron, which is technically a nonmetal, is a metalloid. read more