مصادر الكيمياء موقع لتعليم الكيمياء بصورة مبسطة
Atomic size. The atomic or ionic radius is the size of the atom or the ion of an element and is usually considered as the distance between the nucleus and the outermost shell of the electrons of the atom. Trends in atomic sizes in the periodic table. The atomic size of the elements (atoms) decreases from left to right in …
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