21. The paragraph that talks about the common metalloids is limited to talking about that topic. 22. Where the post-transition metals end depends on where the metalloids or nonmetals start. 23. The chemical element silicon is a crystalline metalloid widely used in computers and other electronic equipment. 24. The heavier metalloids continue the theme. 25. All metalloid hydrides are highly flammable. 26. On this basis, together with some chemical arguments, they classify Po as a metalloid . 27. Metalloid additives can improve properties of metallic alloys, sometimes paradoxically to their own apparent properties.28. Arsenic is unique among the trace metalloids and oxyanion-forming trace metals ( e . g. 29. Typical metalloids have a metallic appearance, but they are brittle and only fair conductors of electricity. 30. In 1970 IUPAC recommended abandoning the term metalloid because of its continuing inconsistent use in different languages.
