boiling period
51Chalcogen — Group 16 Period 2 8 O 3 …
52Nitrogen group — Group 15 Period 2 7 N 3 …
53Glossary of fuel cell terms — The Glossary of fuel cell terms lists the definitions of many terms used within the fuel cell industry. The terms in this glossary may be used by fuel cell industry associations, in education material and fuel cell codes and standards to name but …
54climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …
55mineral deposit — Introduction aggregate of a mineral in an unusually high concentration. About half of the known chemical elements (chemical element) possess some metallic (metal) properties. The term metal, however, is reserved for those chemical… …
56Italy — • In ancient times Italy had several other names: it was called Saturnia, in honour of Saturn; Enotria, wine producing land; Ausonia, land of the Ausonians; Hesperia, land to the west (of Greece); Tyrrhenia, etc. The name Italy, which seems to… …
57List of methods of torture — A list of torture methods and devices includes: Contents 1 Psychological torture methods 2 Physical torture methods 3 Instruments of torture 4 Medieval …
58Beer — This article is about the alcoholic beverage. For other uses, see Beer (disambiguation). Schlenkerla Rauchbier straight from the cask …
59Nitrogen — carbon ← nitrogen → oxygen ↑ N ↓ P …
60Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ …
