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A homogeneous mixture of two or more chemical elements, where the resulting compound has metallic properties. Common coin alloys include cupro-nickel (copper and nickel) and bronze (copper and tin). altered date. A false date put on a coin to defraud collectors, usually to make it appear more valuable.
Prior to decimalisation in 1971, there were 12 pence (written as 12d) in a shilling (written as 1s or 1/-) and 20 shillings in a pound, written as £1 (occasionally "L" was used instead of the pound sign, £). There were therefore 240 pence in a pound. For example, 2 pounds 14 shillings and 5 pence could have been written as £2 14s 5d or £2 14 5.
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]
Currently circulating coinage. The current decimal coins consist of: one penny and two pence in copper-plated steel. five pence and ten pence in nickel-plated steel. equilateral curve heptagonal twenty pence and fifty pence in cupronickel. bimetallic one pound and two pounds.
This is a list of Hypertext Transfer Protocol (HTTP) response status codes. Status codes are issued by a server in response to a client's request made to the server. It includes codes from IETF Request for Comments (RFCs), other specifications, and some additional codes used in some common applications of the HTTP.
This is a list of emoticons or textual portrayals of a writer's moods or facial expressions in the form of icons. Originally, these icons consisted of ASCII art, and later, Shift JIS art and Unicode art. In recent times, graphical icons, both static and animated, have joined the traditional text-based emoticons; these are commonly known as ...
The periodic table is a tabular arrangement of the chemical elements, organized by their atomic number, electron configuration, and chemical properties. It is a useful tool for understanding the patterns and trends of the elements and their interactions. Learn more about the history, structure, and significance of the periodic table on Wikipedia.
A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...