# Which of these represents the correct electron configuration of rubidium? [Atomic number of rubidium is 37.]

A. $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{10} 4 p^{6} 5 s^{2}$
B. $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{10} 4 p^{6} 5 s^{1}$
C. $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{8} 4 p^{6} 5 s^{1}$
D. $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{10} 4 p^{5} 5 s^{1}$

Question

# Which of these represents the correct electron configuration of rubidium? [Atomic number of rubidium is 37.]

A. $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{10} 4 p^{6} 5 s^{2}$
B. $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{10} 4 p^{6} 5 s^{1}$
C. $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{8} 4 p^{6} 5 s^{1}$
D. $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{10} 4 p^{5} 5 s^{1}$

StudyXY · Accepted Answer

: Write down the atomic number of rubidium and determine the number of electrons. : Write the electron configuration up to the noble gas configuration of the previous period. : Add the remaining electrons to the outermost shell. : Write the correct electron configuration for rubidium. Therefore, option B is the correct answer.

Q
QuestionAnatomy and Physiology

Answer

Full Solution Locked

Step 1
: Write down the atomic number of rubidium and determine the number of electrons.

Step 2
: Write the electron configuration up to the noble gas configuration of the previous period.

Final Answer

Need Help with Homework?

Related Questions

Company

Explore

Study Tools

QQuestionAnatomy and Physiology

AnswerHelpful