Friends, in 9th std we were all taught about the electronic configuration. The modern periodic table is also based on the modern periodic law. Anybody remember the formula for number of electrons or capacity of K, L, M and N shells. The formula was 2n^2. But now, forget about this formula. Now it is not in use.
After some workings on getting the electronic configuration of elements, we come across the terms s,p,d and f shells on the net. And this is the actual way how electronic configuration of an element can be understood. The 's' shell has capacity to hold 2 electrons. p,d and f have the capacity to hold 6,10 and 14 electrons respectively. Now lets turn to how to actually put electrons in these shells. Lets take an element. Say POTASSIUM. It has atomic number 19. And no doubt, you must be knowing the atomic number of the element to get its electronic configuration. LOL
1s
2s 2p
3s 3p 3d
4s 4p 4d 4f
5s 5p 5d 5f
6s 6p 6d
7s 7p
Arrange this, say algorithm on your notebook. s,p,d,and f hold 2,6,10 and 14 electrons each. If you calculate the total electrons present in this weird diagram, you will get the total number of electrons to be 118. This is absolutely equal to the number of elements known to man. Dont consider the recently discovered elements having atomic number greater than 118. This can be known through the following way:
7 's' shells means 7*2 = 14
6 'p' shells means 6*6 = 36
4 'd' shells means 4*10= 40
2 'f' shells means 2*14= 28
If u add 14+36+40+28 = 118. AAHHHHHHH !!!!!!!!!!!!!!!!! TIRED???????? But there are lot of amazing things to learn further. Friends, we will learn how to get to the actual electronic configuration in my next post. Thank you for reading. Please subscribe, comment and ask questions if any doubt. Please ask questions if u have not understood because further part is little complicated. KEEP ON READING>
After some workings on getting the electronic configuration of elements, we come across the terms s,p,d and f shells on the net. And this is the actual way how electronic configuration of an element can be understood. The 's' shell has capacity to hold 2 electrons. p,d and f have the capacity to hold 6,10 and 14 electrons respectively. Now lets turn to how to actually put electrons in these shells. Lets take an element. Say POTASSIUM. It has atomic number 19. And no doubt, you must be knowing the atomic number of the element to get its electronic configuration. LOL
1s
2s 2p
3s 3p 3d
4s 4p 4d 4f
5s 5p 5d 5f
6s 6p 6d
7s 7p
Arrange this, say algorithm on your notebook. s,p,d,and f hold 2,6,10 and 14 electrons each. If you calculate the total electrons present in this weird diagram, you will get the total number of electrons to be 118. This is absolutely equal to the number of elements known to man. Dont consider the recently discovered elements having atomic number greater than 118. This can be known through the following way:
7 's' shells means 7*2 = 14
6 'p' shells means 6*6 = 36
4 'd' shells means 4*10= 40
2 'f' shells means 2*14= 28
If u add 14+36+40+28 = 118. AAHHHHHHH !!!!!!!!!!!!!!!!! TIRED???????? But there are lot of amazing things to learn further. Friends, we will learn how to get to the actual electronic configuration in my next post. Thank you for reading. Please subscribe, comment and ask questions if any doubt. Please ask questions if u have not understood because further part is little complicated. KEEP ON READING>
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