The metalloids are along the "staircase" on the right hand side of of . They can either lose an electron or share an electron when it combines with other elements. They have some properties of metals and some properties of non-metals.
The metalloids include Boron (B), Silicon (Si), Germanium (Ge), Arsenic (As), Antimony (Sb), Tellurium (Te), Astatine (At), and Polonium (Po). You can view more information at and the .