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Block: s-block

The s-subshell of the respective current main shell is filled. The block includes the 1st and 2nd group as well as the element helium. All s-elements except helium are highly reactive, metals of the s-block are strongly electropositive and have low melting and boiling points.

Hydrogencolorless gas (H₂)

Heliumcolorless gas, exhibiting a gray, cloudy glow

Lithiumsilvery-white

Berylliumwhite-gray metallic

Sodiumsilvery white metallic

Magnesiumshiny grey solid

Potassiumsilvery white, faint bluish-purple hue when exposed to air

Calciumdull gray, silver; with a pale yellow tint

Rubidiumgrey white

Strontiumsilvery white metallic; with a pale yellow tint

Caesiumpale gold

Bariumsilvery gray; with a pale yellow tint

Radiumsilvery white metallic

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

s-block p-block d-block f-block