Final answer:
Neon (Ne) is the odorless gaseous element obtained from fractional distillation of liquid air with an atomic number of 10.
Step-by-step explanation:
The odorless gaseous element obtained from fractional distillation of liquid air with an atomic number of 10 is neon (Ne). Neon is a noble gas, part of Group 18 in the periodic table, which also includes helium, argon, krypton, xenon, and radon. These gases are known for being unreactive and monatomic, meaning they exist as single atoms.