![GCSE CHEMISTRY - What are Electron Shells? - What is an Energy Level? - What is an Outer Shell? - Why is a Full Electron Shell Stable? - GCSE SCIENCE. GCSE CHEMISTRY - What are Electron Shells? - What is an Energy Level? - What is an Outer Shell? - Why is a Full Electron Shell Stable? - GCSE SCIENCE.](https://www.gcsescience.com/Potassium-Atom.gif)
GCSE CHEMISTRY - What are Electron Shells? - What is an Energy Level? - What is an Outer Shell? - Why is a Full Electron Shell Stable? - GCSE SCIENCE.
![Principal quantum number n and maximum number of electrons per shell both predicted by 2(n2), and observed. Orbitals not to scale. | TechnoCrazed Principal quantum number n and maximum number of electrons per shell both predicted by 2(n2), and observed. Orbitals not to scale. | TechnoCrazed](https://www.technocrazed.com/wp-content/uploads/2020/01/principal-quantum-number-n-and-maximum-number-of-electrons.png)
Principal quantum number n and maximum number of electrons per shell both predicted by 2(n2), and observed. Orbitals not to scale. | TechnoCrazed
![Colorful Periodic Table of the Elements - shows atomic number, symbol, name, atomic weight, electrons per shell, state of matter and element category Stock Vector Image & Art - Alamy Colorful Periodic Table of the Elements - shows atomic number, symbol, name, atomic weight, electrons per shell, state of matter and element category Stock Vector Image & Art - Alamy](https://c8.alamy.com/comp/TCJ7WM/colorful-periodic-table-of-the-elements-shows-atomic-number-symbol-name-atomic-weight-electrons-per-shell-state-of-matter-and-element-category-TCJ7WM.jpg)
Colorful Periodic Table of the Elements - shows atomic number, symbol, name, atomic weight, electrons per shell, state of matter and element category Stock Vector Image & Art - Alamy
![1.Draw a dot-cross diagram for a sodium atom 2.Write an equation to show the first ionisation energy of sodium (its value is +496kJmol -1 ) 3.Write an. - ppt download 1.Draw a dot-cross diagram for a sodium atom 2.Write an equation to show the first ionisation energy of sodium (its value is +496kJmol -1 ) 3.Write an. - ppt download](https://images.slideplayer.com/26/8476915/slides/slide_3.jpg)