noble gas notation

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705379941
Posts: 52
Joined: Fri Aug 30, 2019 12:16 am

noble gas notation

Postby 705379941 » Thu Oct 24, 2019 8:35 pm

does anyone know a shortcut for noble gas notation?

PranaviKolla2B
Posts: 114
Joined: Fri Aug 30, 2019 12:17 am

Re: noble gas notation

Postby PranaviKolla2B » Thu Oct 24, 2019 8:37 pm

Is noble gas notation when we refer back to the previous noble gas on the periodic table and use it to stand in for its electron configuration (and then we continue to write the rest of the configuration for the element that we are working with)?

Ryan Narisma 4G
Posts: 104
Joined: Fri Aug 30, 2019 12:18 am

Re: noble gas notation

Postby Ryan Narisma 4G » Thu Oct 24, 2019 8:51 pm

Hi! Yes! The noble gas notation is just the shortcut way of writing electron configurations of atoms. As PranaviKolla3G mentioned, first find the element of which you want to find the electron configuration. Then, locate the immediate preceding noble gas. Write the noble gas element abbreviation in brackets (these: [, ] ). Then continue the electron configuration as if you were starting from subsequent period in which the element of interest is located. Example: Selenium (Se)

[Ar] 3d^10 4s^2 4p^4

(note that 3d-sublevel comes first because the 3d-subshell is lower in energy when we involve atoms with 20+ electrons)


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