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Description
At the end of this activity, students should be able to: – state the arrangement of electrons in the individual subshells of an atom – write the electron configuration of an atom, knowing its atomic number – give the principles of the classification of elements in the periodic table – determine which group and period a given element belongs to on the basis of its electron configuration – determine the electron configuration of an element knowing its position in the periodic table – describe the formation of positive and negative ions.