workers disturbing lead-containing paint to establish exposure levels to lead for those workers. The recorded levels are then compared to two different airborne concentrations listed in the OSHA standard: the action limit (AL) and the permissible exposure limit (PEL).
Woozi (ì°ì§) is a South Korean singer. He is a member of the boy group SEVENTEEN and leader of their vocal team unit.
Your starting point for finding the electron configuration of the magnesiu mcation, #Mg^(2+)#, will be the electron configuration of the neutral magnesium atom, #Mg#. You know that magnesium is located in period 3, group 2 of the periodic table, and that it has an atomic number equal to #12#. This means that a neutral magnesium atom will have a total of #12# protons in its nucleus and #12# electrons surrounding its nucleus. Its electron configuration would look like this. #Mg:  1s^2 2s^2 2p^2 3s^2#. Now, when the magnesium cation is formed, two electrons, hence the #2+# charge of the cation, are lost by the mgnesium atom. These electrons, which are called valence electrons, come from magnesium's outermost energy level.