A chemical element is one of those squares on the periodic table that adorns many a classroom wall. Sure. But what is an element really? It is a more subtle question that you might realise. To get to ...
The fundamental data structure in a data processing system. Any unit of data defined for processing is a data element; for example, ACCOUNT NUMBER, NAME, ADDRESS and CITY. A data element is defined by ...
A group of seventeen metallic elements contained in rare earth minerals. Also called "rare earth metals," they are essential in tech, energy and transportation. Mined from the earth's crust, they are ...
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