1) What is the element with the electron: [Ne] 3s^2 3p^5? 2) The number of unpaired...
1) What is the element with the electron: [Ne] 3s^2 3p^5?
2) The number of unpaired electrons in a Co atom (Z=27) is?
3) How many d electrons are there in an iron atom (Z=26)?
4) A f sublevel consists of _____
orbital(s).
Homework Answers
1) Phosphorus
2) Electronic configuration of Co is [Ar]3d^7 4s^2.The 3d sublevel has 5 atomic orbitals, each of which can contain 2 electron with the opposite spin. On filling the electrons in the d sublevel, 2 orbitals get filled with the two paired electrons while 3 orbitals remains unpaired with the 3 electrons.
So, the no of unpaired electrons in Co is 3.
3) The electronic configuration of Fe(Z=26) is Ar[3d^6]4s^2.
So,the number of d electrons in an iron atom is 6.
4) A f sublevel consists of 7 orbitals.
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