Alkaline earth metal - It is six chemical elements in group 2 of the periodic table. The elements have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure, Alkaline metal - It is on group 1. which lies in the s-block of the periodic table. All alkali metals have their outermost electron in an s-orbital: this shared electron configuration results in their having very similar characteristic properties., Period - It Is in the periodic table that a row of chemical elements, Metalloid - Low electrical and thermal conductivity, may be crystalline or amorphous, moderate density, and form acidic oxides., Group - It is vertical columns. It can called also as family.,

periodic table

طباعة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟