Lösung:
The valence electrons are Those who Electrons, which The Commission in The External Shell are. This Number of can from to the Periodic system withdrawn will be, by: z.B. of Left side after on the right numbered will be. That 's it . is shown z.B. Nitrogen 5 valence electrons on. In total has It 's By the way,, There you go. The atomic number 7 is, 7 Protons and This means that In the Neutral State of operation 7 Electrons. This total Number to Electrons is But not to mixed with The Electrons, which The Commission It 's just … in The External Shell are: The valence electrons.