2d
Only s and p in the 2 level
D orbitals start to get filled after the 3p orbitals in the periodic table. They are typically filled after filling the 4s orbital, as the 3d orbitals are the next to be filled in the transition metal series.
The s orbital is present in all valid principal quantum number shells.The p orbital is present in n = 2 and higher.The d orbital is present in n = 3 and higher.The f orbital is present in n = 4 and higher.So the invalid ones are b (there are no 2d orbitals) and c (there are no 3f orbitals). 4s and 3p are perfectly legitimate.
The electron configuration of calcium is 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2. This means that calcium has 20 electrons, with two electrons in the 1s orbital, eight in the 2s and 2p orbitals, and eight in the 3s and 3p orbitals, and finally two in the 4s orbital.
4s 3p 3s 2p 1s This is probably one of the easiest chemistry problems in the book, you should probably look it up.
Aufbau: 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f In a 3p element, which include Al, Si, P, S, Cl, and Ar, there are 2p and 3p orbitals, of which only the 3p exists in the third energy level. There are three types of p orbital, px, py, and pz. They orient themselves in the x, y and z axes, as is suggested. Therefore, there are three p-orbitals in the third energy level.
After the 3p orbital, the next atomic orbital is the 4s orbital. In the order of filling according to the Aufbau principle, the 4s orbital is filled before the 3d orbital. Following the 4s, the 3d orbitals are filled, and then the 4p orbitals come next.
The orbital designations 3f and 2d are invalid. The letter "f" is not used to designate orbitals, and the numbers in the designation should follow a specific order: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, etc.
The electrons fill in the lowest energy orbital that is available. Electrons in the 4s orbital have a lower energy level than electrons in the 3p orbital, so the 4s orbitals are filled with electrons first.
D orbitals start to get filled after the 3p orbitals in the periodic table. They are typically filled after filling the 4s orbital, as the 3d orbitals are the next to be filled in the transition metal series.
The s orbital is present in all valid principal quantum number shells.The p orbital is present in n = 2 and higher.The d orbital is present in n = 3 and higher.The f orbital is present in n = 4 and higher.So the invalid ones are b (there are no 2d orbitals) and c (there are no 3f orbitals). 4s and 3p are perfectly legitimate.
The orbital designation "4p 3s 2d 5f" is invalid because it does not follow the proper order of filling orbitals according to the Aufbau principle. The correct order is 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, and 7p.
The electron configuration of calcium is 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2. This means that calcium has 20 electrons, with two electrons in the 1s orbital, eight in the 2s and 2p orbitals, and eight in the 3s and 3p orbitals, and finally two in the 4s orbital.
4s 3p 3s 2p 1s This is probably one of the easiest chemistry problems in the book, you should probably look it up.
-3s*4p+-4s*3p -12sp+-12sp -24sp
The order of electron orbitals following the Aufbau principle is: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, and 7p. Electrons fill the orbitals in increasing energy levels.
1s 2s 3s 3p 4s 3d 4p
Aufbau: 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f In a 3p element, which include Al, Si, P, S, Cl, and Ar, there are 2p and 3p orbitals, of which only the 3p exists in the third energy level. There are three types of p orbital, px, py, and pz. They orient themselves in the x, y and z axes, as is suggested. Therefore, there are three p-orbitals in the third energy level.