On heating atoms of a pure elements – in gaseous or vapor state – to a high temperature or exposing them to a low pressure in an electrical discharge tube , they emit a...
Long time ago man was asking about the nature of matter and its structure , while the trials done by the scientists to answer this question across different eras , the concept of the...
Nuclear Transformation Nuclear transformation reactions are nuclear reactions in which the nucleus of an element ( called target ) is bombarded with an accelerated particle called projectile ( bomb ) to transform the target...
Matter is composed of atoms , These atoms show the physical and chemical properties of the matter , By the end of the nineteenth century , Scientists had become sure that electrons are from...
