Cadmium belongs to group 12 of the periodic table with properties resembling Zn and Mercury. Let us further understand the electronic structure of Cd.
The electronic configuration of Cd is [Kr] 4d105s2. It is a silvery-white metal and shows +2 as its most stable oxidation state. It is an environmental pollutant and thus not good for human health.
Cd has several useful applications in our day-to-day life. In this article, we will further dive into the electronic configuration, ground state and excited state configuration of Cd.
How to write cadmium electron configuration
The electronic configuration of Cd is [Kr] 4d105s2 which is written according to the given conditions.
- S orbital can, at max, have 2 electrons
- 6 electrons can be filled in the P orbital
- D orbital can accommodate 10 electrons, and
- F orbital takes in 14 electrons.
- Cd has 48 electrons, and they are filled in different orbitals obeying Aufbau’s principle, Pauli’s exclusion principle and Hund’s rule.
Cadmium electron configuration diagram
The electronic configuration of Cd is [Kr] 4d105s2 . Therefore the electronic configuration diagram of Cd can be drawn as follows–
Cadmium electron configuration notation
The electron configuration notation of Cd is written as follows-
- [Kr] 4d105s2 in terms of noble gas, or
- 1s22s22p63s23p63d104s24p64d105s2 in increasing order of energy of orbitals.
Cadmium unabbreviated electron configuration
The unabbreviated electronic configuration of Cd is 1s22s22p63s23p63d104s24p64d105s2
Ground state cadmium electron configuration
The ground state electronic configuration of Cd is 1s22s22p63s23p63d104s24p64d105s2 or [Kr] 4d105s2
Excited state of cadmium electron configuration
The excited state electronic configuration of Cd is 1s22s22p63s23p63d104s24p64d105s15p1
Ground state cadmium orbital diagram
The electronic configuration of Cd is [Kr] 4d105s2 . The electrons are filled in increasing order of energies of orbitals obeying Aufbau’s principle, Pauli’s exclusion principle and Hund’s rule. The electronic configuration orbital diagram of Cd is drawn as follows-
Cadmium nitrate electron configuration
The electronic configuration of Cd in Cadmium nitrate is 1s22s22p63s23p63d104s24p64d10 where Cd is in +2 oxidation state, so two electrons are removed from the 5s orbital of Cd.
Cadmium condensed electron configuration
The condensed electronic configuration of Cd is [Kr] 4d105s2.
Conclusion
Cd has similar chemical reactivity to Zn and Hg, showing no biological functions. It has several applications in batteries, electroplating, nuclear fission, anticancer medication and semiconductors. Though Cd has some good uses, its highly soluble compounds and fine dust can cause degradation in human health.
Also Read:
- Francium electron configuration
- Lanthanum electron configuration
- Arsenic electron configuration
- Osmium electron configuration
- Xenon electron configuration
- Potassium electron configuration
- Uranium electron configuration
- Tellurium electron configuration
- Ytterbium electron configuration
- Hassium electron configuration
Hello….. I am Shubhi Mishra. I share an eternal love for Chemistry. It is never “too much” to learn and think about Chemistry. My qualifications stand as MSc-Chemistry, BSc-BEd(Physical Sciences).
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