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

Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
Sign up Log in
4 replies · 15K views
Larrytsai
Messages
222
Reaction score
0
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?
 
Physics news on Phys.org
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.