Does francium use the 7s orbital?

[Veronica_Oles]

Homework Statement

Just wondering where does a 7s orbital come into play?
Would you use 7s when it comes to francium?

Homework Equations

The Attempt at a Solution

 

[BvU]

http://sciencenotes.org/list-of-electron-configurations-of-elements/

 

[Veronica_Oles]

http://sciencenotes.org/list-of-electron-configurations-of-elements/

Thanks.

 

[BvU]

If the (b) part of the exercise is "Why is this so?", we're in trouble

 

[Veronica_Oles]

If the (b) part of the exercise is "Why is this so?", we're in trouble

Ha yeah.

 

[DrClaude]

Just wondering where does a 7s orbital come into play?
Would you use 7s when it comes to francium?

Don't forget about excited states. Francium is not used much because it has a lifetime too short to do meaningful experiments with it, but the 7s orbital comes into play often when dealing with cesium.