Edelgasgroepen

Edelgasgroepen, also known as noble gases, are a group of chemical elements that share similar properties. They are characterized by their low reactivity due to having a full outer electron shell. This stable electron configuration makes them very reluctant to form chemical bonds with other elements. The elements in this group are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).

These elements are all gases at standard temperature and pressure. They are colorless, odorless, and monatomic, meaning they exist as single atoms rather than molecules. Their discovery was a significant event in chemistry, as their unique inertness was initially puzzling.

Helium is the second lightest element and is known for its use in balloons and cryogenics. Neon is famous for its use in neon signs, producing a distinctive red-orange glow when an electric current passes through it. Argon is the most abundant noble gas in the Earth's atmosphere and is used in welding and lighting. Krypton and xenon have specialized applications, including in lighting and lasers, while radon is a radioactive gas found naturally in small amounts.