أكاديميا - كولنز - معاجم الجيب العلمية - الكيمياء - انكليزي - فرنسي - عربي الحرف x

Academia - Collins - Pocket Scientific Dictionaries - Chemistry - English - French - Arabic, letter X


X-rays
rayons mpl X

X-ray. High-energy electromagnetic radiation, resulting from the release of electrons on metals. It is a highly penetrating radiation that easily passes through living flesh, but stops in front of bones and other dense materials such as metals.


xenon
xenon m

Xenon is one of the few noble gases that form compounds. However, only the two most reactive elements succeeded in this, namely fluorine and oxygen, as in the cases of XeF2, XeF4, XeF6, and XeO3. This element is used to fill ordinary light bulbs and fluorescent tubes.