Phase: gaseous

Gases have particles that are freely movable at a great distance from each other and continuously fill the available space. Gases are compressible, the volume of ideal gases is inversely proportional to pressure.

Hydrogencolorless gas (H₂)

2He

Heliumcolorless gas, exhibiting a gray, cloudy glow

Nitrogencolorless gas, liquid or solid

Oxygencolorless (gas); pale blue (liquid and solid)

Fluorinevery pale yellow (gas); bright yellow (liquid); alpha is opaque, beta is transparent (solid)

10Ne

Neoncolorless gas exhibiting an orange-red glow when placed in an electric field

17Cl

Chlorinepale yellow-green gas

18Ar

Argoncolorless gas exhibiting a lilac/violet glow when placed in an electric field

36Kr

Kryptoncolorless gas, exhibiting a whitish glow in an electric field

54Xe

Xenoncolorless gas, exhibiting a blue glow when placed in an electric field

86Rn

Radoncolorless gas

H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og

Legend

gaseous solid liquid