Neon (Ne) VS Argon (Ar)
A definitive side-by-side comparison of two essential element profiles.
VS
Main Differences
Neon (Ne) is an element in the noble gases category with an atomic number of 10. Argon (Ar) is an element in the noble gases category with an atomic number of 18.
Argon (Ar) is 2.0x denser than Neon (Ne). However, Argon (Ar) melts at a higher temperature than Neon (Ne) (a difference of 59.2 Kelvin).
Where do the names come from?
Ne Neon (Ne) Naming History
The name Neon comes from the Greek ''neos'', meaning new.
Ar Argon (Ar) Naming History
The name Argon is derived from the Greek, ''argos'', meaning idle.
Related Comparisons
Compare
Neon (Ne)
Argon (Ar)
Category
Noble Gases
Noble Gases
Atomic Number
10
18
Symbol
Ne
Ar
Atomic Mass
20.18 u
39.95 u
Group
18
18
Period
2
3
Block
p-block
p-block
Standard State (at 20°C)
gas
gas
Density
0.900 g/L g/cm³
1.784 g/L g/cm³
Melting Point (°C)
−248.59°C
−189.34°C
Melting Point (°F)
−415.46°F
−308.81°F
Melting Point (K)
24.56 K
83.8 K
Boiling Point (°C)
−246.046°C
−185.848°C
Boiling Point (°F)
−410.883°F
−302.526°F
Boiling Point (K)
27.07 K
87.3 K
Year Discovered:
1898
1894
CAS Number
09/01/7440
7440-37-1
Origin of Name:
The name comes from the Greek ''neos'', meaning new.
The name is derived from the Greek, ''argos'', meaning idle.