How Does Electron Configuration Change When Removing Electrons from Ca 2+?

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Discussion Overview

The discussion revolves around the electron configuration of the calcium ion (Ca 2+) and how it changes when electrons are removed. Participants explore the concepts of full notation and core notation, as well as the implications of removing electrons from specific orbitals.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • One participant presents the full and core notation for Ca 2+ as 1s2 2s2 2p6 3s2 3p4 and [Ar] 4s2, questioning what happens when the 4s2 cancels out.
  • Another participant challenges the correctness of the full notation provided, expressing uncertainty about the second question regarding core notation.
  • A participant reiterates the full and core notation for Ca 2+ and compares it to the configurations of sulfur ions (S2- and S), suggesting that the positive ion's configuration is confusing due to the removal of electrons.
  • There is a suggestion that electrons should be removed from the highest occupied orbital, specifically the 4s2 orbital, and a question about the resulting configuration is posed.
  • Core notation is described as referring to noble gas notation, with an indication that understanding the first part should clarify the second part of the question.

Areas of Agreement / Disagreement

Participants express disagreement regarding the correctness of the full notation and the process of removing electrons from the calcium ion. Multiple competing views on the electron configuration and the implications of removing electrons remain unresolved.

Contextual Notes

There are limitations in the clarity of the questions posed, particularly regarding the interpretation of core notation and the order of electron removal. The discussion does not resolve the mathematical steps involved in determining the final electron configuration.

Larrytsai
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right in full notation, and core

Full
Ca 2+ =
1s2 2s2 2p6 3s2 3p4

Core
Ca 2+ = [Ar] 4s2 - what happens when the 4s2 cancells out?
 
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Your full notation is wrong.

I'm not quite certain what your second question is in regards to.
 
Larrytsai said:
right in full notation, and core

Full
Ca 2+ =
1s2 2s2 2p6 3s2 3p4

Core
Ca 2+ = [Ar] 4s2 - what happens when the 4s2 cancells out?

Ca = [Ar] 4s2

If you have the element S2- you're electron configuration will be [Ar], while the element S is just [Ne] 3s2 3p4.
 
GCT said:
Your full notation is wrong.

I'm not quite certain what your second question is in regards to.

hmm. that's the thing, the positive ion throws me off... I am supposed to remove 2 electrons in this order P -> S -> D so originally i would have 2+ more on the last shell

Second question I am supposed to write in Core Notation.
 
Your supposed to remove the electron from the highest occupied electron orbital which is the 4s2 orbital - what would you have as a result?

Core notation refers to the noble gas notation - it's nothing complicated once you figure out the first part the second should be made apparent.
 

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