In this video we're going to talk about the SPD F sub levels we need to know is that S has a spherical shape just like a sphere P has a dumbbell shape it can be drawn both ways D is like a cloverleaf and F has some unusual shape which varies and I really don't want to go over that but some things you need to know the number of energy levels is equal to the number of sub levels so when n is 1 you only have 1 sub level S when n is 2 you have two sub levels s and P when n is 3 you have 3 sub levels 3s 3p 3d when n is 4 there are 4 sub levels 4s 4p 4d and 4f the S sub level can hold up to two electrons and you need to know that every orbital can hold up to two electrons so s has one orbital now in a periodic table the S block is really the first two columns Group one and group two so that's the S block P can hold up to 6 electrons if you notice the P block in the periodic table it's like group 13 to group 18 you can see those six elements there P can hold up to six electrons and because every orbital can hold up to two electrons P has three orbitals D can hold up to ten electrons the elements in the D block starting with like um you have like zinc copper and nickel those are in the 3d sublevel and if you look at the periodic table this 10 elements there D can hold up to 10 electrons and so the D sublevel has 5 orbitals F can hold up to 14 electrons...

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