chemical familles list

Les Familles Chimiques

1. Métaux Alcalins (Groupe 1)

• Elements and Chemical Symbols:

• Lithium (Li)

• Sodium (Na)

• Potassium (K)

• Rubidium (Rb)

• Césium (Cs)

• Francium (Fr)

• Physical and Chemical Properties:

  • Very reactive with water and oxygen.

  • Low melting point.

  • Soft and malleable.

  • Combine easily with non-metals.

• Uses:

  • Vapor lamps.

  • Medicines.

  • Salts.

  • Bleach.

  • Batteries.

Métaux Alcalino-terreux (Groupe 2)

• Elements and Chemical Symbols:

• Béryllium (Be)

• Magnésium (Mg)

• Calcium (Ca)

• Strontium (Sr)

• Baryum (Ba)

• Radium (Ra)

• Physical and Chemical Properties:

  • Reactive but less so than alkali metals.

  • Burn in air.

  • React with various compounds.

  • Possess a silver luster.

  • Very malleable.

• Uses:

  • Fireworks.

  • Construction.

  • Medical imaging.

. Halogènes (Groupe 17)

Elements and Chemical Symbols:

• Fluor (F)

• Chlore (Cl)

• Brome (Br)

• Iode (I)

• Astate (At)

• Physical and Chemical Properties:

• Very reactive.

• Fluorine and Chlorine are gases at room temperature.

• Bromine is a liquid at room temperature.

• Iodine is a solid at room temperature.

• Uses:

  • Lighting.

  • Photography.

  • Bleach.

  • Medicines.

Gaz Nobles (Groupe 18)

• Elements and Chemical Symbols:

• Hélium (He)

• Néon (Ne)

• Argon (Ar)

• Krypton (Kr)

• Xénon (Xe)

• Radon (Rn)

• Physical and Chemical Properties:

  • Stable and low reactivity.

  • Gaseous at room temperature.

  • Colorless and odorless.

• Uses:

  • Lights.

  • Neon signs.