Explain the role of valence electrons and how they relate to the periodic table of elements? Plz this i really need to finish this.

Explanation:

The valence electrons determine the group the elements belong in the periodic table. For example, the element sodium, Na, has a valence electron of one and so it belongs to Group 1 in the periodic table. Another example is Aluminium, Al, which has a valence electron of three and therefore it belongs to Group 3 in the periodic table.

b. climate change will cause an increase in biodiversity of all ecosystems.

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