This is the current news about iron (fe): [ar]4s23d6 core electrons valence electrons|[Best Answer] Use the periodic table to identify the number of core 

iron (fe): [ar]4s23d6 core electrons valence electrons|[Best Answer] Use the periodic table to identify the number of core

 iron (fe): [ar]4s23d6 core electrons valence electrons|[Best Answer] Use the periodic table to identify the number of core