Question

The period’s number corresponds to the highest .....

• A. Azimuthal quantum number
• B. Spin quantum number
• C. Magnetic quantum number
• D. Principal quantum number

Answer 1

Answer:

D. Principal quantum number

As seen in the most convenient and widely used periodic table of the long-form that is the modern version, the horizontal rows that depict period number represent the highest principal quantum number of the atoms in the period.