Meaning of Radioactivity Radioactivity is the spontaneous disintegration or breaking down of the nucleus of an atom which makes it give out or emit radiation. Any element that disintegrates spontaneously… Read More »RADIOACTIVITY – MEANING, USES, TYPES, EFFECTS, DANGER & PROPERTIES
Element An element is a substance which cannot be further divided into simpler substances. Over 100 chemical elements are known. They fall into two main categories, namely: Metals and Non-metals.… Read More »ELEMENTS, COMPOUND AND ATOMIC STRUCTURE
Electricity is the flow of electric current. Electric Current is the continuous flow of charges (electrons). It is also the rate of flow of charges. Electricity has several applications in the modern day society.