Quantum numbers Quantum numbers Below are a list o f Quantum Numbers, indicate w
ID: 888730 • Letter: Q
Question
Quantum numbers Quantum numbers Below are a list o f Quantum Numbers, indicate which are acceptable for describing the state of an electron? For any that ARE valid please indicate what shell & subshell the electron would reside in. Psi = f(n, l, m1 ,ma) f( 1, 1, +1 / 2 , - 1 / 2) f( 3, 0, -1 ,- 1 / 2c) f( 2 ,1 , -1 , -1/2) f( 4, 3, -2 , -1/2) Periodic Trends Arrange these in order of increasing size Si, Mg, Cl, P, Al (don't use numbers) Circle one with lowest first ionization energy. Put a square around one with highest electron affinity.Explanation / Answer
WE know that
n = represents the shell of electron
l = represents the orbital (angular distributio)
ml = the number of orbitals and their orientation within a subshell.
ms : spin state of electron
a) (1,1,+1/2 , -1/2) : Not possible to have ml = +1/2
b) (3.0,-1,+1/2)
Not possible
if l = 0 the ml can only be zero ("s" orbital has only one subshell)
c) (2,1,1-1,-1/2)
Possible
2p1
d) )4,3,-2,-1/2)
Possible for
4f electrons
Periodic trends:
Arrange in increasing size:
Si , Mg , Cl, P ,Al
Highest to lowest
Mg,Al, Si, P, S, Cl
Among these Aluminium will have lowest first ionization energy