Standard periodic table,colour-coded for electron shells. The periodic table shows the chemical elements ordered by atomic number (number of protons in the nucleus),but arranged in rows (periods) so that elements with similar chemistry occur in the same vertical column (group). Here,the colours show the blocks formed by the elements with their outer electrons in the same electron shell: s-block (blue),d-block (yellow),p-block (red),f-block (green). It is these outer electrons that determine an element's chemical properties. Each element is represented by its chemical symbol. Above each symbol is the element's atomic number,and below it is the atomic weight,and the element's name | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 6500 px × 4500 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |