A periodic table can be used to forecast an element's properties. As we drop into a group or go across a period in the Periodic Table, we can observe a variety of patterns in the physical and chemical characteristics of the elements. The correct option is C.
Each element's location in the table provides crucial details regarding its composition, characteristics, and behavior during chemical reactions. In particular, you may determine an element's electron configuration that is, how the electrons are arranged around the nucleus by looking at where it is in the periodic table.
The group (vertical column) number in the Periodic Table can be used to calculate an element's number of valence electrons. The chemical characteristics of elements with the same number of valence electrons are comparable.
Thus the correct option is C.
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