The reason for neon's relative scarcity on Earth and the inner (terrestrial) planets, is that neon forms no compounds to fix it to solids, and is highly volatile, therefore escaping from the planetesimals under the warmth of the newly-ignited Sun in the early Solar System.. 
Kadbùkún (, ) jẹ́ ìpilẹ̀ṣẹ̀ elegbogi pẹ̀lú àmì-ìdámọ̀ CD àti nọ́mbà Fítọ́mù 48.Ìtọ́kasí àwọn àpilẹ̀ṣe kẹ́míkà.. 