jalokaasuja

Jalokaasuja is a Finnish term that translates to "noble gases" in English. Noble gases are a group of chemical elements that form Group 18 of the periodic table. These elements are characterized by their low reactivity under standard conditions. The six naturally occurring noble gases are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). All noble gases, except for helium, have a full valence electron shell, which contributes to their stability and inertness.

Helium is the second lightest element and is commonly known for its use in balloons and airships due to its low density and non-flammability. Neon is recognized for its distinctive red-orange glow when used in gas-discharge lamps. Argon is the most abundant noble gas in Earth's atmosphere and is utilized in welding and as an inert atmosphere in incandescent light bulbs. Krypton and xenon are used in specialized lighting applications, such as high-intensity discharge lamps and strobe lights. Radon is a radioactive noble gas that is a byproduct of the radioactive decay of uranium and radium, and it can be a health concern in enclosed spaces due to its radioactivity.

Due to their inert nature, noble gases have found various applications in scientific research, industry, and everyday technology, ranging from lighting and lasers to cryogenics and medical imaging. Their unique properties make them valuable in situations where chemical reactivity needs to be avoided.