What are the Four Quantum Numbers in Stationary States of the Hydrogen Atom?

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The four quantum numbers for the stationary states of the hydrogen atom are n, l, m, and σ. The principal quantum number n indicates the energy level, while the azimuthal quantum number l describes the shape of the orbital. The magnetic quantum number m specifies the orientation of the orbital in space. The spin quantum number σ represents the intrinsic spin of the electron. Understanding these quantum numbers is essential for describing the behavior of electrons in hydrogen.
aidantof
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Q: Explain the meanings of the four quantum numbers, n, l, m, σ which label the stationary states of the electron in the hydrogen atom.

i know what n and m are i can't find anywhere wat l is but i think its radius of orbit, but what is σ?

help would be much appreciated.
 
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aidantof said:
but what is σ?
That's the spin quantum number. The other three are spatial quantum numbers.

Try this: Quantum Numbers, Hydrogen Atom.
 
oh excellent, cheers big doc al!
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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