how is its extraction done?
UNANSWERABLE
what is metalloid? It is a type of chemical element. what are the isotopes of this element? UNANSWERABLE what is its description? It is a  mixture of metals and nonmetals. what are the properties of the latter mentioned? Physically, they largely exist as diatomic or monatomic gases while chemically they mostly have high ionisation energies. what are its alternative categories? The relative homogeneity of the halogens, physical form, electronegativity etc what are its data source? CRC Handbook of Physics and Chemistry;" standard electrode potentials what are its applications in common? They do not have any universal or near-universal applications. what is its association with noble gas? Six of them are categorised as noble gases.
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Nonmetal [SEP] Noble gas
Six nonmetals are categorised as noble gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn). In periodic table terms they occupy the outermost right column. They are called "noble gases" in light of their characteristically very low chemical reactivity. They have very similar properties, all being colorless, odorless, and nonflammable. With their closed valence shells the noble gases have feeble interatomic forces of attraction resulting in very low melting and boiling points. That is why they are all gases under standard conditions, even those with atomic masses larger than many normally solid elements.