Select the correct electron configuration for Cu(z=29)
Correct answer: B. [Ar]4S13d10
- A. [Ar]4S23d9
- B. [Ar]4S13d10
- C. [Ar]4S24p63d3
- D. [Ar]4S14d9
Explanation
The correct electron configuration for copper (Cu) with atomic number 29 is:b. [Ar] 4s13d10The electron configuration represents the distribution of electrons in the atomic orbitals of an atom.The electron configuration for copper (Cu) can be determined by filling the orbitals in the order of increasing energy, following the Aufbau principle.The electron configuration of copper is [Ar] 4s13d10. This means that copper has a filled 4s subshell (2 electrons) and a filled 3d subshell (10 electrons).
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Atomic Structure
Atomic structure covers the discovery of the proton, Planck's quantum theory, hydrogen emission spectra and the evidence for quantized energy levels. You will use quantum numbers to describe orbitals, distinguish s, p, d and f orbital shapes, and write electronic configurations, including the correct order of electron filling.
Practise Atomic Structure
922 free Atomic Structure MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Atomic Structure questions
An ion X+2 has 2e- in its valence shell, how many electrons were there-in its valence shell before ionization?
After removal of one electron from the outer most shell of each atom, which will have max. no. of unpaired electrons?
The total no. of unpaired p electrons in Br are :
Arrange potassium, rubidium, calcium and barium in order of increasing atomic size.
The element having the smallest atomic radius among the following is
The arrangement of sodium, oxygen, fluorine and strontium on the basis of increasing first ionization energy is