atomic number 6 atomic number 6 /əˈtɒmɪk ˈnʌmbər sɪks/

noun

1. An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds  ( atomic number 6 , C , carbon )
   an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
     Carbon is an element found in all living organisms.
   Carbon is an element found in all living organisms.