Chemical bond. A chemical bond is an attraction between atoms. This attraction may be seen as the result of different behaviors of the outermost or valence electrons of atoms. These behaviors merge into each other seamlessly in various circumstances, so that there is no clear line to be drawn between them.
Nuclear Engineers-What They Do. Nuclear engineers research and develop the processes, instruments, and systems used to derive benefits from nuclear energy and radiation. They design, develop, monitor, and operate nuclear plants to generate power.They may work on the nuclear fuel cycle the production, handling, and use of nuclear fuel and the safe disposal of waste produced by the generation of nuclear energy or on the development of fusion energy.hey design, develop, monitor, and operate nuclear plants to generate power. They may work on the nuclear fuel cycle the production, handling, and use of nuclear fuel and the safe disposal of waste produced by the generation of nuclear energy or on the development of fusion energy.
Mechanical engineers develop and build mechanical devices for use in industrial processes. Mechanical engineering is one of the broadest engineering disciplines. Mechanical engineers research, design, develop, build, and test mechanical and thermal sensors and devices, including tools, engines, and machines. Duties. Mechanical engineers typically do the following: Analyze problems to see how mechanical and thermal devices might help solve a particular problem