The number of electrons in the n = 4, = 2 subshell in strontium (Z = 38) is ____ the number of electrons in the n =4, =2 subshell in barium (Z = 56).
A) times
B) times
C) equal to
D) times
E) times

Question

The number of electrons in the n = 4,  = 2 subshell in strontium (Z = 38) is ____ the number of electrons in the n =4,  =2 subshell in barium (Z = 56).
A) times 
B) times 
C) equal to 
D) times 
E) times

Quizplus · Accepted Answer

The number of electrons in subshell 11eb6adc_ed97_cd52_b0cf_038d667614dc_TB8245_11 = 2 in both strontium and barium is determined by the principal quantum number (n) and the azimuthal quantum number (l), which are the same for both elements. The number of electrons in this subshell is equal to 4(11eb6adc_ed97_cd52_b0cf_038d667614dc_TB8245_11)^2 = 4(2)^2 = 16 for both elements. Therefore, the number of electrons in this subshell is equal in both strontium and barium, and the answer is choice C.

The Number of Electrons in the N = 4