The correct electronic configuration of Cu Is
Correct answer: A. 1s22s22p63s23p64s23d9
- A. 1s22s22p63s23p64s23d9
- B. 1s22s22p63s25p64s23d7
- C. 1s22s12p23s23p64s23d9
- D. 1s22s22p63s23p64s
Explanation
Copper has an unusual electronic configuration in its ground state. Instead of filling the 4s orbital completely before moving to the 3d orbital, one electron from the 4s orbital moves to the 3d orbital. Therefore, the 3d orbital is filled with 10 electrons, and the 4s orbital has only one electron
Last updated
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.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
168 O-2 has how many electrons in s-orbitals?
3s2, 3p4 valence shell electronic configuration corresponds to ?
6Y = 2s12P1x2P1y2P1z this is_configuration
A 1-kW radio frequency of 880 KHz. How many quantas per second does it emit?
A 1kW radio transmitter operates at a frequency of 880 kHz. How many quanta per second does it emit?