Bohr model of a sodium ion (Na⁺)

An example figure from the Bohr Model generator.

Bohr model of a sodium ion in brackets with a + charge: 11 protons, 12 neutrons and 2 and 8 electrons, the lost third-shell electron drawn as an empty dashed spot
A Bohr model of the sodium ion Na⁺, in square brackets with its 1+ charge at the top right. It has 11 protons and 12 neutrons but only 10 electrons, 2 and 8. The electron it lost from the third shell is drawn as an empty dashed spot on the third ring, and a key explains the symbols.

Editing opens it in Bohr Model with these settings, to change anything and copy or download your own.

Answer key

  • Sodium ion, charge 1+
  • Protons: 11 · Neutrons: 12 · Mass number: 23
  • Electrons: 10 (2, 8 by shell)

Free to use in your tests, worksheets, slides or anything else. Open source under Apache 2.0. How to reuse our figures

More Bohr Model examples