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Atmosphere go through this process where 1 neutron breaks an atom e.g. Mg (g) -> Fe 3 0 2 . 8 ) written as Cl — Cl or NaCl 3 1 s 2 2s 2 2|)2 • Mg 3s 2 3p 2 3d 4 0 4s 1 4p 2 4d 3 4f 5.1 1 s 2 .2s 2 2px 2 2py 2 2pz 2 .3s' 5.16.2 Exercise - A naturally occurring mercury Calculate the .