An atom, when most people think of one what they’re thinking                                                of is a tiny assortment of spheres with other spheres orbiting

them. This is the Rutherford model of an atom, it was devised by

Ernest Rutherford but this model is incorrect!

   What an actual atom looks like is much much harder to wrap

your head around: it’s a fuzzy dot. But the ‘fuzz’ around it is

actually a probability cloud. But first, when you observe

something like a chair, you assume it’s always there but not in quantum mechanics. An electron is a particle that makes up an atom and it is that ‘fuzz’. That fuzz is the probability of an electron being there. The thicker it is the more likely an electron will be there when observed. But first, to redefine observed, it isn’t notice or perceive (something) and register it as being significant as the dictionary says (at least for quantum mechanics it isn’t). In quantum mechanics, observing will bunch up all those dots to one place, that’s where the electron is.

   So get rid of the orbiting atom idea of an atom and replace it with the confusing idea of an electron being everywhere and nowhere in the probability field. This is one of the most complicated and disputed topic in science.