Which of following metalloids is located in the sixth period of periodic table

The metalloid that is Located in the sixth period of periodic table is : 
Astatine
It's usually found on the earth crust, usually because of the decay products of various heavier elements

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Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

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