Respuesta :

quasarJose

Answer:

Argon

Explanation:

Manganese is an atom with 25 electrons in its orbitals. The orbital notation is shown below:

                        1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s²

The closest noble gas to manganese is argon with a configuration of:

                         1s² 2s² 2p⁶ 3s² 3p⁶

Therefore, based on the noble gase Ar, we can write Mn as:

                                  [Ar]3d⁵ 4s²