Which of the following represents the configuration of the highest energy electrons in an atom of a Group III element in the ground state?
A 3s2 3p1 B 3s2 3p3 C 4s2 3d1 D 4s2 4p3
I thought it would be B because it has a more complete p orbitals, but that is wrong. Can someone help me and explain please??
I think it's C.
In the third energy level, 4s2 fills before the 3d orbitals. So, you can't just restrict yourself to the choice of A and B just because you see '4' in C and D.
In the third energy level, 4s2 fills before the 3d orbitals. So, you can't just restrict yourself to the choice of A and B just because you see '4' in C and D.
Your're explanation is really good but the marking scheme says A?
Your're explanation is really good but the marking scheme says A?
Oh wait, I'm sorry, didn't read the question properly either!
B doesn't represent a group 3 element, it represents a group 5 element. A is the correct answer because it represents a Group 3 element, notice the 3p1 and look on your periodic table.
Oh wait, I'm sorry, didn't read the question properly either!
B doesn't represent a group 3 element, it represents a group 5 element. A is the correct answer because it represents a Group 3 element, notice the 3p1 and look on your periodic table.
Ahhhhh, that makes soooo much sense now, your explanation was great and easy to understand, thanks buddy!!!