A sodium atom in an excited state has an electron configuration of 1s22s22p63p1. The excited electron within the configuration was excited from the:A.2s orbital.B.2p orbital.C.3s orbital.D.3p orbital.
Question
A sodium atom in an excited state has an electron configuration of 1s22s22p63p1. The excited electron within the configuration was excited from the:A.2s orbital.B.2p orbital.C.3s orbital.D.3p orbital.
Solution
The electron configuration of a ground state (lowest energy) sodium atom is 1s22s22p63s1. In the excited state given in the question, the electron configuration is 1s22s22p63p1.
Comparing the two configurations, it's clear that an electron has moved from the 3s orbital to the 3p orbital. Therefore, the excited electron within the configuration was excited from the 3s orbital.
So, the correct answer is C. 3s orbital.
Similar Questions
What is the electron configuration of sodium?Group of answer choices1s22s22p51s22s11s22s22p63s23p11s22s22p63s11s22s22p53s2
Sodium (Na) has an atomic number of 11. Its electron configuration (by shells) is therefore:A 2, 8, 1B 1, 2, 8C 2, 2, 7D 2, 7, 2*1 pointABCD
Which of the following has the electronic configuration as shown: 1s2 2s2 2p6 3s2 3p21 pointFAl3+S2-Si9. Sodium has
Sodium has an atomic number of 11. Determine its electron configuration in numbers and explain how you arrived at it.
Write down the complete electronic configuration of sodium.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.