in the modern periodic table after which element after which atomic number the electronic configuration series pattern was changed
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Add 2 8 8 18 18 32
one by one in the next element
one by one in the next element
anaya9:
2,8,8 in normal electronic configuration
but when it's electronic configuration was changed like this - 2,8,18 from which element does it change
Like Cu
Like Cu
Like Cu
May be scandium
because before vanadium the calcium element was there and it's electronic configuration was 2,8,8,2 or if we changed then 2,8,10 means 2,8,18 type configuration
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"Iron"
Electron configurations of elements can be a bit confusing, and the transition metals are a case in point. Iron has the configuration 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^6. Note that the 4s orbitals are filled before you add six electrons to the 3d orbitals. Yet, the 3d orbitals do actually belong with the n=3 orbitals and not the n=4 orbitals. So, you will have 2 electrons in the n=1 (1s) shell, 8 in the n=2 (2s and 2p) shell, (8+6 =) 14 in the n=3 (3s, 3p, and 3d) shell, and finally 2 electrons in the n=4 (4s) shell.
If, perhaps, this wasn't enough fun for you, take a look at the electronic configuration of Neodymium (Nd) and other Lanthanides. These have incompletely filled n=4, n=5, and n=6 shells.
recording me it's your right answer.
Electron configurations of elements can be a bit confusing, and the transition metals are a case in point. Iron has the configuration 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^6. Note that the 4s orbitals are filled before you add six electrons to the 3d orbitals. Yet, the 3d orbitals do actually belong with the n=3 orbitals and not the n=4 orbitals. So, you will have 2 electrons in the n=1 (1s) shell, 8 in the n=2 (2s and 2p) shell, (8+6 =) 14 in the n=3 (3s, 3p, and 3d) shell, and finally 2 electrons in the n=4 (4s) shell.
If, perhaps, this wasn't enough fun for you, take a look at the electronic configuration of Neodymium (Nd) and other Lanthanides. These have incompletely filled n=4, n=5, and n=6 shells.
recording me it's your right answer.
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