Carbon Group Poster

Carbon Group/Group 14:

Elements:

• Carbon- non mental, 4 valence electrons=likes to bond, highly reactive with oxygen, but not with other elements

• Silicon- Metallica, insoluble in water, poor conductor of electricity, conductivity increases with heat

• Germanium- metalloid, semi conductive, stable in air and water, reacts with hot acids and oxygen at high temperatures

• Tin- metal, nontoxic, malleable, low melting point, reacts mainly with Chlorine, Bromine, and Iodine

• Lead- metal, toxic, malleable, poor conductor of electricity, durable, and resistant to corrosion

• Flerovium- metal, highly reactive, reactive with gold

Key Features:

• 4 valence electrons

• +/ charge

• Carbon isn’t highly reactive unless with oxygen, but the rest of the group is

• Electronegativity: C > Si ≈ Ge ≈ Sn > Pb

• Oxides become more basic down the column

• Elements become progressively metallic down the column

• Stabilization of (+2) oxidation state relative to (+4) of the elements down the group.

• The atomic radii increase when going down the group, and ionization energy decrease