1 / 7 ยท Guided practice
Build carbon
Neutral carbon needs 6 electrons to balance its 6 protons (the atomic number); drag 2 into the lowest-energy shell.
6Atomic number
C
Carbon
12.011
Valence electronsFrom your model4
Simplified Bohr model
Drag an electron
Return it here to remove it.
Tab to a shell, press Enter to add an electron, or Backspace to remove one; you can also tap the tray and then a shell.