Structure of the atom

Build an atom


Build an atom with protons, neutrons and electrons, and see how the element, charge and mass change, then play to test your ideas!

File

Click here to start the simulation
Licencia de Creative Commons

Estructura de un átomo


What does an atom look like? Atomic models are representative "pictures" that help us understand what an atom looks like. Historically, there have been many atomic models.
Click here to start the simulation

Electrons configuration


The electrons configuration of an atom refers to the arrangement of the atom's electrons. The electrons fill the lowest energy levels first.
Click here to start the simulation

Bohr's atomic model


In Bohr's atomic model the electrons are placed in stable circular orbits around the nucleus. The atom has only certain energy levels. Electrons change energy levels by emitting or absorbing photons.
Click here to start the simulation

Atomic interactions


Explore the interactions between various combinations of two atoms. Observe the total force acting on the atoms or the attractive or repulsive force separately. Customize the attraction to see how the interaction is affected by changing the atomic diameter and interaction strength.

File

Click here to start the simulation
Licencia de Creative Commons

Isotopes and atomic mass


Are all atoms of an element the same? How can you tell one isotope from another? Use the simulator to learn about isotopes and how abundance relates to the average atomic mass of an element.

File

Click here to start the simulation
Licencia de Creative Commons

General chemistry

 

General Chemistry I: Atoms, Molecules, and Bonding

 
 

Big Bang and the Origin of Chemical Elements

 
Physicochemistry
 

Electrochemistry

 
 

Energy to Electrochemistry Final Exam

 

You may also be interested in