Is The Office For Value For Money Poor...
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No best answer has yet been selected by chazzyj12. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.no its not a period as in an American full stop. (.)
Dobereiner noticed that some elements could be grouped in threes - his triads
and Mendeleev saw that the triads could be further ordered. And its the repeaty thing that gives the idea of a period - something that is repeated.
Schoolchildren usually do Mendeleev around the same time as they get wave functions, and so it all sort of fits together.....
No me again
not those wave functions
v = f lambda
that type of wave thing - - it goes back to zero.
Not psi x psi star.....do you realise I am so old that the pre uni chemistry courses didnt have that sort of thing ?
I was gonna tell Chazzy that he shares his name with an important engineer - Chezy, who did stuff on open channel flows, but we got sort of side tracked......