atom
What Is The Electron Cloud Model?
The Electron Cloud Model was of the greatest contributions of the 20th century, leading to a revolution in physics and…
What Are The Parts Of An Atom?
Thanks to centuries of ongoing research, modern scientists have a very good understanding of how atoms work and what their…
Astronomy Cast Ep. 377: Thomson Finds the Electron
At the end of the 19th century, physicists were finally beginning to understand the nature of matter itself, including the…
Why Is the Solar System Flat?
It's no mystery that the planets, moons, asteroids, etc. in the Solar System are arranged in a more-or-less flat, plate-like…
Earth is the Most Exotic Place In The Universe
I'm often asked by students in my community education astronomy classes whether any new elements have been found in outer…
What are Photons
[/caption] When we think about light we don't really think about what it is made of. This was actually the…
What Is Atomic Mass
[/caption] The answer to 'what is atomic mass' is this: the total mass of the protons, neutrons, and electrons in…
What are Electrons
[/caption] If you have heard of electrons you know that they have something to do with electricity and atoms. If…
Atomic Mass Unit
[/caption] Believe it or not, there are actually several atomic mass units … however, the one that's standard – throughout…