They have completely filled orbitals / energy levels. Both neon and argon have 8 valence electrons and have stable electronic configuration. Hence they are chemically inert and generally donot form compounds under normal conditions.
Neon and argon are two distinct elements.
The chemical symbols of neon and argon are Ne and Ar.
Argon is larger than neon because it has more electrons and a larger atomic radius.
Diffusion
Argon has a higher melting point than Neon. Neon melts at -248.6 degrees Celsius, whereas Argon melts at -189.4 degrees Celsius.
Helium, neon, and argon are the three lightest members of the noble gases.
Argon
No. Neon atoms and Argon atoms have different atomic numbers. Which means they have different numbers of protons.
The rate of diffusion of a gas is inversely proportional to the square root of its molar mass. Since argon is heavier than neon (molar mass of 40 g/mol compared to 20 g/mol), argon will diffuse more slowly than neon.
Neon is smaller.
The outer electron orbits of helium, neon, and argon are all filled with electrons, making them stable and inert. This results in these elements having very low reactivity and being part of the noble gases group on the periodic table. Helium has 2 electrons in its outer orbit, neon has 8, and argon has 18.
Yes, argon is commonly used in neon lights along with a small amount of neon gas. When an electric current passes through the argon and neon gases inside the tube, it excites their atoms and produces the characteristic bright glow associated with neon lights.