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.
c
1
no because f orbitals are not energetically available until the n=4 quantum state
The Angular Momentum Quantum number L, defines how many types of orbitals can exist. For a particular Quantum Level n, L is defined as any integer from 0 to L = n-1. For example, for the energy level n = we must have, L = 0 or 1. L=0 relates to the s-orbital L=1 relates to the p-orbital L=2 would relate to the d-orbital, but we can see here that for n=2, L cannot = 2
3f
3f can not exist by the Aufbau principle, quantum mechanics and Hunds rules. In level one there is only 1s In level 2 there is 2s and 2p In level 3 there is 3s, 3p and 3d Only in level 4 and beyond is there an f shell. In level 4 there is 4s, 4p, 4d and 4f. The 4f can hold up to 14 electrons.
Natural tooth enamel is composed of hydoxyapatite, Ca5(PO4)3OH, the fluoride ions in toothpaste and water substitute some of the hydroxide ions to for fluoroapatite, Ca5(PO4)3F. This form of apatite is stronger and more resistant to corrosion.
2d is incorrect
3f ( 3 only has the d orbital final ) and 2d ( 2p is the final orbital on the 2 level )
3f
There can be a maximum of 14 electrons in any "f" orbital. However, the 3f orbital does not exist. f orbitals are only found in quantum energy level 4 and above.
no because f orbitals are not energetically available until the n=4 quantum state
The Angular Momentum Quantum number L, defines how many types of orbitals can exist. For a particular Quantum Level n, L is defined as any integer from 0 to L = n-1. For example, for the energy level n = we must have, L = 0 or 1. L=0 relates to the s-orbital L=1 relates to the p-orbital L=2 would relate to the d-orbital, but we can see here that for n=2, L cannot = 2
the 3F then to medium also prelim it goes: 1A 1B 1C 1D 1E 1F Novice: 2A 2B 2C 2D 2E 2F AND ELIMENTRY: 3A 3B 3C 3D 3E 3F
-3f - 14 = 1 -3f = 1+14 -3f = 15 f = -5
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Adrenaline is the 3F hormone.
3f+9 = 23 3f = 23-9 3f = 14 f = 14/3 3f+9=23 -9 -9 3f= 14 /3 /3 f= 4.66666 (6 repeats)
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