Examlex
As of 2007,what is the maximum efficiency of a multijunction solar cell?
Atomic Nucleus
The dense, positively charged center of an atom, composed of protons and neutrons.
Radioactive Elements
Elements that spontaneously emit radiation as a result of the decay of their atomic nuclei.
Nobel Prizes
A set of annual international awards bestowed in several categories by Swedish and Norwegian institutions in recognition of academic, cultural, or scientific advances.
Ionize
The process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons.
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