Ermetova jamila ismailovna ermetov amirbek ismailovich karimova munisa maxsud qizi

kimyoviy birikma – tarkibi o'zgarmas ikki yoki undan ortiq elementlardan tashkil topgan sof moddalar.
compound – a pure substance composed of two or more elements whose composition is constant.
kimyoviy bog’lanish – molekula yoki kristal tuzilishidagi atomlar orasidagi tortishish.		chemical bond – the attraction between atoms in a molecule or crystalline structure.
kimyoviy elementlarning davriylik qonuni – mendeleyevning qonuni ham deyiladi. Elementlarning kimyoviy va fizik xususiyatlari atomlarning og'irliklari tartibida tartibga solinadigan davrda muntazam takrorlanadi.		periodic law – also called mendeleev's law. (Originally) the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights.