Question

There are ______ orbitals in the third shell.
A. 4
B. 9
C. 1
D. 16
E. 25

Answer 1

There are 9 orbitals in the third shell, combining 1 s orbital, 3 p orbitals, and 5 d orbitals.

Step-by-step explanation:

The student has asked about the number of orbitals in the third shell. The third shell of an atom, which is characterized by the principal quantum number n=3, has three types of subshells: s, p, and d. The s subshell contains 1 orbital, the p subshell contains 3 orbitals, and the d subshell contains 5 orbitals. In total, there are 9 orbitals in the third shell (1 from s, 3 from p, and 5 from d).

Answer 2

There 9 orbitals in the third shell