{"id":157013,"date":"2024-10-17T20:23:26","date_gmt":"2024-10-17T20:23:26","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=157013"},"modified":"2024-10-17T20:23:28","modified_gmt":"2024-10-17T20:23:28","slug":"give-the-noble-gas-core-ground-state-electron-configuration-for-mo3","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/10\/17\/give-the-noble-gas-core-ground-state-electron-configuration-for-mo3\/","title":{"rendered":"Give the noble gas core ground state electron configuration for Mo3+"},"content":{"rendered":"\n

Give the noble gas core ground state electron configuration for Mo3+<\/p>\n\n\n\n

The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n

The noble gas core ground state electron configuration for the molybdenum ion Mo\u00b3\u207a is:<\/p>\n\n\n\n

[ \\text{[Kr]} \\, 4d^5 ]<\/p>\n\n\n\n

Explanation:<\/h3>\n\n\n\n

To understand the electron configuration for Mo\u00b3\u207a, we first need to look at the neutral molybdenum atom (Mo). Molybdenum has an atomic number of 42, meaning it has 42 electrons in its neutral state. The electron configuration of neutral molybdenum is:<\/p>\n\n\n\n

[ \\text{[Kr]} \\, 5s^2 \\, 4d^4 ]<\/p>\n\n\n\n

This configuration shows that molybdenum has 2 electrons in the 5s subshell and 4 electrons in the 4d subshell, following the order of filling based on the Aufbau principle, which prioritizes lower energy levels before filling higher ones.<\/p>\n\n\n\n

When molybdenum is ionized to form Mo\u00b3\u207a, it loses three electrons. The typical order of electron loss follows the principle that electrons are removed from the outermost shell first, which is the 5s subshell in this case. Therefore, Mo\u00b3\u207a loses the 2 electrons from the 5s subshell first:<\/p>\n\n\n\n

[ 5s^2 \\to 0 ]<\/p>\n\n\n\n

Next, one electron is removed from the 4d subshell. This results in the following electron configuration for Mo\u00b3\u207a:<\/p>\n\n\n\n