پاورپوینت تئوری اتمی

پاورپوینت تئوری اتمی   186اسلایدهمراه باتصویر به زبان انگلیسی میباشد   The picture below shows three objects that can be classified in the same group. Which of the following statements is true for all three of these objects?  They are metals.  They rust rapidly.  They weigh the same.  They are the same color. Which pair of elements is MOST similar? Ca and F Na and Cl Ne and Ar Li and H Copper is an element that is used in electrical wir ...