The word "yadon" is spelled phonetically as [ˈjaːdɒn]. The initial sound "y-" represents the vowel sound /j/ as in the word "yet". The letter "a" is pronounced /a:/ which is a long open front vowel. The consonant "d" is pronounced as /d/ as in the word "dog". Finally, the ending sound "-on" is pronounced as /ɒn/ which is a nasal sound similar to the "on" in "don". Therefore, the correct spelling of "yadon" is denoted by the IPA phonetic transcription [ˈjaːdɒn].