This week we study all about electrons. They matter because they are the parts that make reactions happens and are behind the beauty of the periodic table, aka next week’s adventure.
<— The lie we teach because it’s easier to understand. (This is a bad Bohr model with the wrong number of electrons in each orbit. Furthermore, this atom says it’s actually an ion because it is missing an electron. Is it sure? It’s positive. Get it?! Ha ha ha.)
Better, shows the right number of electrons and the quantum configuration, but there’s more. –>
Below, and even more true image. These are the different probability clouds where electrons are most likely to buzzing around. These clouds layer on top of each other to make a very complex, lovely atom.
Finally, the most true is below. This is an actual image of an antimony atom on the surface of a crystal of silicon, taken with a Scanning Tunneling Microscope, or STM.
Basically, the tip of the microscope gets so close to the material, electrons from the material tunnel up the vacuum to the tip. The amount of electric charge is recorded. The tip slides a step over and another electron tunnels up, and the amount of charge is recorded. Different distances have different charges. A computer takes the differences, and creates an image from them,much like a ship makes a sea floor image from sonar.A STM tip probing the surface of silicon looking for antimony.
So what is the whole smash? The Standard Model.
Except…look, do you see a particle for gravity? What about dark matter and dark energy? (aka 96% of the universe) Yeah, there’s always more to the story….