anonymous
  • anonymous
Manganese has a total of 25 electrons, but the following orbital notation for manganese is incorrect. Explain the error in terms of the rules for electron arrangements. Manganese:
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
This is the picture http://i.imgur.com/JMItwNL.png
aaronq
  • aaronq
The AUFBAU principle states that orbitals must be filled in order of increasing energy. 4s orbitals are lower in energy than 3d orbitals when first filling in electrons.
aaronq
  • aaronq
i.e. you must first fill in 4s before 3d orbitals

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anonymous
  • anonymous
I still don't understand
aaronq
  • aaronq
do you have a periodic table with you?
anonymous
  • anonymous
yes
aaronq
  • aaronq
okay, electrons are filled in a horizontal order from left to right.|dw:1378411543191:dw| i separated it into blocks so you can see where the orbitals are. Locate manganese in the periodic table and trace a horizontal line from left to right. You'll see you encounter K and Ca (which are \(4s^1\;and\;4s^2\)) before manganese. This is the order the electrons are filled.
anonymous
  • anonymous
Ok but i still don't understand how to answer the question.. :(
aaronq
  • aaronq
Explain the error in terms of the rules for electron arrangements. The orbital notation presented violates the AUFBAU principle as orbitals of higher energy (3d) are filled before orbitals of lower energy (4s).
anonymous
  • anonymous
The orbital notation presented violates the AUFBAU principle as orbitals of higher energy (3d) are filled before orbitals of lower energy (4s). So that is the answer?
aaronq
  • aaronq
yep
anonymous
  • anonymous
ok thank you very very much for explaining it to me :D :D :D
aaronq
  • aaronq
no problem! i do hope you understood it

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