Atomic Model

This model was developed after Ernst Rutherford discovered the nucleus, a densely packed structure containing protons and neutrons. It shows electrons orbiting the nucleus is random circular orbits.

• 
• 
• 
• 
• 

This model was developed after J.J. Thompson discovered electrons, a particle smaller than an atom. It shows electrons floating freely in a positive region.

• 
• 
• 
• 
• 

This model was developed after Niels Bohr proposed that atoms orbit the nucleus in discreet orbitals around the nucleus, and that these orbitals were limited in the number of electrons they could each hold.

• 
• 
• 
• 
• 

This model was developed after scientists applied quantum mechanics to the structure of the atom. This model uses electron's energy and its probable location to describe the electron cloud structure.

• 
• 
• 
• 
• 

This model was first proposed by John Dalton using his observations about elements. His model described a spherical, indivisible atom without any further structure.

• 
• 
• 
• 
•