how to write the short cut of writing electronic configuration using the noble gases as the guide?

Question

how to write it?

Answer 1

well i think i know what u mean........ ^2- means to the power of 2
like....
Hydrogen is 1s^1, helium is 1s^2

if this is what u mean the like
Sodium: is [Ne]2s^1

The site i put on here i found to be helpful when i started on this in college,.... so check it out is good and easy to understand.

Answer 2

Just write the name of the nearest noble gas in square brackets and write the configuration after that using basics.
Here's an example:
I'm writing the configuration of Potassium (K) of atomic number 19 as follows
[Ar]4s1
As the atomic number of argon is 18 we can write like this
Similarly you can write for the remaining elements.

If you have any doubts mail me okay.

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Answer 3

Write the name of the noble gas that comes BEFORE the element you are writing it for in square brackets(NOT after it, because then it doesn't work), and then go back down to the row that the element is in, and write the electron configuration starting in that row for the element.

Example: Molybdenum, element 42
The noble gas before it is Kr, krypton

[Kr]5s2 4d4

and you're done.

Answer 4

Cr(0) ; [Ar] 3-D^5 4s^one million (Wikipedia LH panel will verify, i'm hoping); better stability of one million/2-crammed d shell; 3-D<4s once you do away with e?s to grant a TM cation the 4s e?(s) is (are) got rid of first so Cr^3+ is [Ar] 3-D^3, the main elementary oxdn state for Cr. P(0) [Ne] 3s^2 3p^3 + 3e? ? P^3- [Ne] 3s^2 3p^6 i could argue that the P^3- ion has 8 valence e?.