▁and ▁group ▁ 1 4 ▁atoms ▁( the ▁elements ▁of ▁group ▁ 1 4 ▁are ▁carbon , ▁sil icon , ▁g erman ium , ▁tin , ▁lead ▁and ▁f ler ov ium ). ▁ ▁T et rah yd rides ▁The ▁t et rah yd ride ▁series ▁has ▁the ▁chemical ▁formula ▁X H 4 , ▁with ▁X ▁representing ▁any ▁of ▁the ▁carbon ▁family . ▁M eth ane ▁is ▁commonly ▁the ▁result ▁of ▁the ▁decomposition ▁of ▁organ ic ▁matter ▁and ▁is ▁a ▁green house ▁gas . ▁The ▁other ▁hyd rides ▁are ▁generally ▁un stable , ▁poison ous ▁metal ▁hyd rides . ▁ ▁They ▁take ▁on ▁a ▁py ram idal ▁structure , ▁and ▁as ▁such ▁are ▁not ▁polar ▁mole cules ▁like ▁the ▁other ▁p - block ▁hyd rides . ▁ ▁Un like ▁other ▁light ▁hyd rides ▁such ▁as ▁am mon ia , ▁water ▁and ▁hydro gen ▁flu or ide , ▁m eth ane ▁does ▁not ▁exhib it ▁any ▁anom alous ▁effects ▁attributed ▁to ▁hydro gen ▁bond ing , ▁and ▁so ▁its ▁properties ▁conform ▁well ▁to ▁the ▁prev ail ing ▁tr end ▁of ▁heav ier ▁group ▁ 1 4 ▁hyd rides . ▁ ▁H ex ah yd rides ▁This ▁series ▁has ▁the ▁chemical ▁formula ▁X 2 H 6 . ▁Eth ane ▁is ▁commonly ▁found ▁alongside ▁m eth ane ▁in ▁natural ▁gas . ▁The ▁other ▁hyd rides ▁are ▁even ▁less ▁stable ▁than ▁the ▁t et rah yd rides . ▁ ▁High er ▁group ▁ 1 4 ▁hyd rides ▁ ▁All ▁straight - chain ▁s atur ated ▁group ▁