(C) The position of an element in the periodic table is determined by its $Electronic \ configuration$,which describes the distribution of electrons i

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(C) The position of an element in the periodic table is determined by its $Electronic \ configuration$,which describes the distribution of electrons in various orbitals. The $Principal \ quantum \ number$ $(n)$ determines the period,while the $subshell$ in which the last electron enters determines the block and group.