Sodium (1 Viewer)

[toknblackguy]

hey guys
i need as much info as possible on the sodium doublet syllabus point
i really don't get it at all
it's in chem of art

 

[mon_mon]

Where? i can't find a point about Sodium in the Sylabus. All it seems you need to know Chem of Art is the Flame colour.

 

[toknblackguy]

it's a righthand column thing
"gather and process information
from secondary sources to analyse
the emission spectra of sodium and
present information by drawing
energy level diagrams to represent
these spectral lines"

 

[mon_mon]

Ah. its the idea that the first s electron will be easily pushed up and drop back, giving that yellow colour, due to the distance it travels - a long way - from s3 to s5. the other lines are less distinct because the p and d electrons need a shirtload more energy to be pushed up, so less do it. at least thats my understanding, i could have it the wrong way around. oh and the other lines are greens and blue because they only have to travel from d2 to s4, not a long way. i think.