deep donor in iii-v compounds
21Hydrogen — This article is about the chemistry of hydrogen. For the physics of atomic hydrogen, see Hydrogen atom. For other meanings, see Hydrogen (disambiguation). ← hydrogen → helium …
22Sulfur — This article is about the chemical element. For other uses, see Sulfur (disambiguation). phosphorus ← sulfur → chlorine …
23Water — This article is about general aspects of water. For a detailed discussion of its properties, see Properties of water. For other uses, see Water (disambiguation) …
24Portugal — /pawr cheuh geuhl, pohr /; Port. /pawrdd too gahl /, n. a republic in SW Europe, on the Iberian Peninsula, W of Spain. (Including the Azores and the Madeira Islands) 9,867,654; 35,414 sq. mi. (91,720 sq. km). Cap.: Lisbon. * * * Portugal… …
25Zinc oxide — Other names Zinc white Calamine Identifiers …
26Zambia — Zambian, adj., n. /zam bee euh/, n. a republic in S Africa: formerly a British protectorate and part of the Federation of Rhodesia and Nyasaland; gained independence 1964; a member of the Commonwealth of Nations. 9,349,975; 288,130 sq. mi.… …
27Choline — The N,N,N trimethylethanolammonium cation, with an undefined counteranion, X− Choline is a water soluble essential nutrient.[1][ …
28Norway — /nawr way/, n. Norwegian, Norge. a kingdom in N Europe, in the W part of the Scandinavian Peninsula. 4,404,456; 124,555 sq. mi. (322,597 sq. km). Cap.: Oslo. * * * Norway Introduction Norway Background: Despite its neutrality, Norway was not able …
29United Nations — 1. an international organization, with headquarters in New York City, formed to promote international peace, security, and cooperation under the terms of the charter signed by 51 founding countries in San Francisco in 1945. Abbr.: UN Cf. General… …
30Ammonia — For other uses, see Ammonia (disambiguation). Ammonia …
