neon's atomic number
Neon: Symbol: Ne: Atomic Number: 10: Atomic Mass: 20.1797 atomic mass units: Number of Protons: 10: Number of Neutrons: 10: Number of Electrons: 10: Melting Point-248.6Â° C: Boiling Point-246.1Â° C: Density: 0.901 grams per cubic centimeter: Normal Phase: Gas: Family: Noble Gas: Period: 2: Cost: $33 per 100 grams