Metalloids, also known as semimetals are elements containing properties similar and midway between metals and nonmetals. They are found to divide the periodic table between the metals on the left and the nonmetals on the right.
Metalloids often have the following properties:
- could be dull or shiny
- conducts heat and electricity, but not as well as metals
- good semiconductors
- usually malleable
- usually ductile
- can both gain and lose electrons in reactions
This is a list of the seven metalloid elements in order of increasing atomic number.
| NUMBER | SYMBOL | ELEMENT |
| 5 | B | Boron |
| 14 | Si | Silicon |
| 32 | Ge | Germanium |
| 33 | As | Arsenic |
| 51 | Sb | Antimony |
| 52 | Te | Tellurium |
| 84 | Po | Polonium |
pretty good. Though it needs a bit more traits.
I’ll see if I can find more to add. The problem with the metalloids is that they don’t share a lot of common properties, since they are in-between metallic and nonmetallic character.
am still not clear on the element astatine is it a non-metal?