Answer: polonium(Po)!
Explanation:
defined by the dictionary of oxford languages, a metalloid is defined as a an element (e.g. arsenic, antimony, or tin) whose properties are intermediate between those of metals and solid nonmetals or semiconductors. there are a total of 8 metalloids. Boron, silicon, germanium, arsenic, antimony, tellurium, astatine, and polonium.
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