AQA atomic structure help.
Hi, can I get some help on this question please. The answer is D apparently.
Many thanks.
Which one of the following atoms has only two unpaired electrons in its ground (lowest energy) state?
A helium
B beryllium
C nitrogen
D oxygen
Many thanks.
Which one of the following atoms has only two unpaired electrons in its ground (lowest energy) state?
A helium
B beryllium
C nitrogen
D oxygen
Oxygen has electronic configuration 1s22s22p4. The orbitals fill singly before getting paired. Thus there are 2 unpaired electrons
Original post by BobbJo
Oxygen has electronic configuration 1s22s22p4. The orbitals fill singly before getting paired. Thus there are 2 unpaired electrons
This.
Original post by Bulletzone
This.
but isnt that the same for Be? 1s2 2s2
Original post by ROadmanKys
but isnt that the same for Be? 1s2 2s2
No?
The 2 electrons will be in the same orbital.
The question wants to know which element has 2 electrons which exist in their own orbital.
Original post by Bulletzone
No?
The 2 electrons will be in the same orbital.
The question wants to know which element has 2 electrons which exist in their own orbital.
The 2 electrons will be in the same orbital.
The question wants to know which element has 2 electrons which exist in their own orbital.
oh lol i forgot in the s shell, only 1 orbital exists
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