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in this video weamp;#39;ll write the lewis structure for snf2 this is called tin ii fluoride so the first thing we need to do is count up the electrons the valence electrons for snf2 tin is in group 14 sometimes called 4a 4 valence electrons fluorine group 17 sometimes called 7a 7 valence electrons we have 2 of them so times 2. that gives us a total of 18 valence electrons for snf2 itamp;#39;s important to note that weamp;#39;re drawing the lewis structure for snf2 in the gas phase if it isnamp;#39;t gaseous itamp;#39;s a little bit different structure so letamp;#39;s assume we have a gaseous form of snf2 as we draw the lewis structure weamp;#39;ll put tin in the center thatamp;#39;s the least electronegative and letamp;#39;s just put the fluorine atoms on either side so we have 18 total valence electrons letamp;#39;s put electrons between atoms thatamp;#39;ll form the chemical bonds so weamp;#39;ll put those there and then we can complete the octets on each of the fluorine
