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List of chemical elements. 118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z ). [ 1]
Of sound mind. Also used in the negative "Non compos mentis", meaning "Not of sound mind". / ˈ k ɒ m p ɒ s ˈ m ɛ n t ɪ s / condicio sine qua non: A condition without which it could not be An indispensable and essential action, condition, or ingredient. consensus ad idem: agreement to the same Meeting of the minds, mutual assent, or ...
Verification is intended to check that a product, service, or system meets a set of design specifications. [6] [7] In the development phase, verification procedures involve performing special tests to model or simulate a portion, or the entirety, of a product, service, or system, then performing a review or analysis of the modeling results.
41 of the 118 known elements have names associated with, or specifically named for, places around the world or among astronomical objects. 32 of these have names tied to the places on Earth, and the other nine are named after to Solar System objects: helium for the Sun; tellurium for the Earth; selenium for the Moon; mercury (indirectly), uranium, neptunium and plutonium after their respective ...
Linguistic prescription[ a] is the establishment of rules defining preferred usage of language. [ 1][ 2] These rules may address such linguistic aspects as spelling, pronunciation, vocabulary, morphology, syntax, and semantics. Sometimes informed by linguistic purism, [ 3] such normative practices often propagate the belief that some usages are ...
A punch list is a document prepared during key milestones or near the end of a construction project listing works that do not conform to contract drawings and specifications that the general contractor must correct prior to final payment. [ 1] The work may include incomplete or incorrect installations or incidental damage to existing finishes ...
Conformity. Conformity is the act of matching attitudes, beliefs, and behaviors to group norms, politics or being like-minded. [ 1] Norms are implicit, specific rules, guidance shared by a group of individuals, that guide their interactions with others. People often choose to conform to society rather than to pursue personal desires – because ...
Some European Union directives describe action plans in order to reach a defined target in air quality or noise reduction. If the target cannot be reached by a member state, the member needs to write a report. Sometimes action plans contain deadlines by which the plan must be ready to start the action(s) and the targets are to be reached.