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in this video iamp;#39;m going to give you a basic introduction into drawing simple lewis structures so the first thing you need to be able to do is determine the number of valence electrons in an atom hydrogen has one valence electron so when you draw the structure of hydrogen it looks like this beryllium which is in group two has two valence electrons so this is the lewis dot structure for beryllium carbon which is found in group four has four valence electrons and so when you draw a lewis structure you only show the valence electrons nitrogen has five oxygen has six valence electrons and fluorine has seven so first you want to space out the electrons evenly before you pair them up so oxygen which has six you can draw like this if you want and then fluorine has seven so thatamp;#39;s how you can draw simple lewis structures of the elements now what about when these atoms combine and four molecules what can we do so letamp;#39;s say for example if we want to draw hydrogen gas so ea
