Final answer:
The element in question is Cobalt (Co), which has 5 fewer protons than Germanium, the least massive metalloid in the 4th period.
Step-by-step explanation:
The student is asking to identify an element that has 5 fewer protons than the least massive metalloid in the 4th period of the periodic table. The least massive metalloid in the 4th period is Germanium with atomic number 32. Subtracting 5 from this gives us 27, which is the atomic number of the element Cobalt (Co), a transition metal.