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 a particular subshell is determined by the principal quantum number (n) and the orbital angular momentum quantum number (l) according to the formula 2(2l+1). Since both subshells in question have n=4 and l=2, they will have the same number of electrons, which is 18. Therefore, the answer is C, equal to.

The Number of Electrons in the N = 4