The short hand configuration is also called noble gas configuration because it mimics the electron configuration of noble gases, which are chemically stable and have full valence shells. By using noble gas configurations, we can easily represent the electron arrangement of elements without writing out the entire electron configuration.
* 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 4d10 5p6 4f14 5d10 6s2 6p67s1 * [Rn]7s1
[Ne] 3s2 3p5 ----------------
The long hand electron configuration of manganese is: 1s22s22p63s23p64s23d5.
Long-hand version: 1s^2 2s^2 2p^6 3s^2 3p^1 Short-hand version: [Ne] 3s^2 3p^1 Note: The "^" symbol means the the following number is in the form of a superscript.
[Ne]3s2
The short hand configuration is also called noble gas configuration because it mimics the electron configuration of noble gases, which are chemically stable and have full valence shells. By using noble gas configurations, we can easily represent the electron arrangement of elements without writing out the entire electron configuration.
* 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 4d10 5p6 4f14 5d10 6s2 6p67s1 * [Rn]7s1
[Ne] 3s2 3p5 ----------------
The long hand electron configuration of manganese is: 1s22s22p63s23p64s23d5.
Short-hand version: [Kr] 5s^2 Note: The "^" symbol means the the following number is in the form of a superscript.
Long-hand version: 1s^2 2s^1 Short-hand version: [He] 2s^1 Note: The "^" symbol means the the following number is in the form of a superscript.
Long-hand version: 1s^2 2s^2 2p^6 3s^2 3p^1 Short-hand version: [Ne] 3s^2 3p^1 Note: The "^" symbol means the the following number is in the form of a superscript.
Long-hand version: 1s^2 2s^2 2p^4 Short-hand version: [He] 2s^2 2p^4 Note: The "^" symbol means the the following number is in the form of a superscript.
The electron configuration of nobelium is:1s22s22p63s23p63d104s24p64d104f145s25p65d105f146s26p67s2
long hand: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p2 Short hand: [Kr] 5s2 4d10 5p6 *Remember the numbers after the letter is written as an exponent*
The long hand electron configuration for Chlorine is: 1s2 2s2 2p6 3s2 3p5. Chlorine has 17 electrons, so its configuration fills up to the 3p subshell with 5 electrons.