Problem: What element in the fourth period of the periodic table has 5 valence electrons?

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We are asked to identify the element in the fourth period of the periodic table that has 5 valence electrons.

Let us look at the periodic table below, focusing on the elements in the fourth period:

Recall that the valence electrons of an element in the periodic table are equal to its group number.


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What element in the fourth period of the periodic table has 5 valence electrons?

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