![ELI5: How is Palladium able to cram all its electrons into it's first 4 valence shells, but the elements both above AND below it are forced to use their 5th shell? : ELI5: How is Palladium able to cram all its electrons into it's first 4 valence shells, but the elements both above AND below it are forced to use their 5th shell? :](https://external-preview.redd.it/7wPcIZfACSejBLD7haCQxLkUsmlxts3gJscWRY2vMWw.jpg?auto=webp&s=073e556447856ed98ab0c80f0fad358979ffcb47)
ELI5: How is Palladium able to cram all its electrons into it's first 4 valence shells, but the elements both above AND below it are forced to use their 5th shell? :
![Atom of Palladium with detailed Core and its 46 Electrons with Atoms in background Stock Photo - Alamy Atom of Palladium with detailed Core and its 46 Electrons with Atoms in background Stock Photo - Alamy](https://c8.alamy.com/comp/2JGFCH2/atom-of-palladium-with-detailed-core-and-its-46-electrons-with-atoms-in-background-2JGFCH2.jpg)
Atom of Palladium with detailed Core and its 46 Electrons with Atoms in background Stock Photo - Alamy
![3d Render Of Atom Structure Of Palladium Isolated Over White Background Protons Are Represented As Red Spheres, Neutron As Yellow Spheres, Electrons As Blue Spheres Stock Photo, Picture And Royalty Free Image. 3d Render Of Atom Structure Of Palladium Isolated Over White Background Protons Are Represented As Red Spheres, Neutron As Yellow Spheres, Electrons As Blue Spheres Stock Photo, Picture And Royalty Free Image.](https://us.123rf.com/450wm/oorka/oorka1902/oorka190200039/118018673-3d-render-of-atom-structure-of-palladium-isolated-over-white-background-protons-are-represented-as-r.jpg)
3d Render Of Atom Structure Of Palladium Isolated Over White Background Protons Are Represented As Red Spheres, Neutron As Yellow Spheres, Electrons As Blue Spheres Stock Photo, Picture And Royalty Free Image.
![Pd Palladium Element Information: Facts, Properties, Trends, Uses and comparison - Periodic Table of the Elements | SchoolMyKids Pd Palladium Element Information: Facts, Properties, Trends, Uses and comparison - Periodic Table of the Elements | SchoolMyKids](https://www.schoolmykids.com/tools/static/images/shells/shells_Pd.png)
Pd Palladium Element Information: Facts, Properties, Trends, Uses and comparison - Periodic Table of the Elements | SchoolMyKids
![Palladium atomic structure has atomic number, atomic mass, electron configuration and energy levels. Stock Vector | Adobe Stock Palladium atomic structure has atomic number, atomic mass, electron configuration and energy levels. Stock Vector | Adobe Stock](https://as2.ftcdn.net/v2/jpg/04/16/00/17/1000_F_416001742_2LaJVduKLdPzN5azv5iCxnb13aGkss4k.jpg)
Palladium atomic structure has atomic number, atomic mass, electron configuration and energy levels. Stock Vector | Adobe Stock
![Pd Palladium, Periodic Table of the Elements, Shell Structure of Palladium - Electrons per energy level Stock Vector Image & Art - Alamy Pd Palladium, Periodic Table of the Elements, Shell Structure of Palladium - Electrons per energy level Stock Vector Image & Art - Alamy](https://c8.alamy.com/comp/2MD25GY/pd-palladium-periodic-table-of-the-elements-shell-structure-of-palladium-electrons-per-energy-level-2MD25GY.jpg)