Question

each period in the periodic table corresponds to a(n) ____.
suborbital
energy sublevel
principal energy level
orbital

Explanation:

In the periodic table, elements are arranged in periods (rows). Each period corresponds to a principal energy level. Electrons in atoms fill these principal energy levels. A suborbital is a part of an orbital. An energy sublevel (like \(s\), \(p\), \(d\), \(f\)) is within a principal energy level. An orbital is a region where an electron is likely to be found. But the period number in the periodic table is directly related to the principal energy level that the outermost electrons of the elements in that period occupy.

Answer:

principal energy level