Question

Is potassium a metalloid?

Answer 1

1. Metalloid: The atom whose property lies between metal and nonmetal is called a metalloid. Most metalloids act as semiconductors.
2. Example of metalloid: Boron($\mathrm{B}$), Silicon($\mathrm{Si}$), Germanium($\mathrm{Ge}$) etc.
3. Potassium: Potassium is an s-block element.
4. The Atomic number of potassium is 19.
5. Potassium can lose an electron and form a cation. The metal can lose electrons easily.
6. $\mathrm{K}\to {\mathrm{K}}^{+}+1{\mathrm{e}}^{-}$
7. Potassium is a metal.

Hence, potassium is not a metalloid. It is a metal.