The principal quantum number for the outermost electrons in a Ca atom in the ground state is __________.
A)2
B)3
C)4
D)5
E)6

Name: The principal quantum number for the outermost electrons in a Ca atom in the ground state is __________. A)2 B)3 C)4 D)5 E)6
Brand: Quizplus
Rating: 4.8 (32 reviews)

Question

Quizplus · Accepted Answer

Calcium (Ca) has an atomic number of 20, and its electron configuration in the ground state is [Ar] 4s². The outermost electrons are in the 4s orbital, so the principal quantum number is 4.

The Principal Quantum Number for the Outermost Electrons in a Ca