Electron Shells
Key Stage 3
Meaning
Electron shells are the places around a nucleus where an electron can orbit the nucleus.
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| A diagram of a Sodium atom shown the electron shells. |
About Electron Shells
- The number of electron shells is shown by the period on the Periodic Table.
- The number of electrons in the outer shell determines the chemical properties of the element.
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| A diagram of the first 20 elements in the Periodic Table showing the electron shells. |