Francium has 36 isotopes, but only francium-223 occurs. francium-223 spontaneously emits particles and energy, so francium-223 is a(n) of francium

Your answer is 1.5 hope i  

Um idk im just doing this for points so just ask google or something

Current supplied to consumers from generating plants like coal power plant, nuclear power plant, geothermal and others are in form of alternating current instead of direct current because it can be transported easily in a long distance. also, the alternating current has a wide range of frequency and the amount or energy can be increased or decreased.