estion 2 of 29 rgan cChemistry Suppose you take a trip to a distant universe and

Question

estion 2 of 29 rgan cChemistry Suppose you take a trip to a distant universe and find that the periodic table there is derived from an arrangemient of quantum numbers different from the one on Earth. The rules in that universe are: 1, principal quantum number n= 1,2 . . . (as on Earth); 2, angular momentum quantum number l = 0, 1, 2,-… n-1 (as on Earth); 3. magnetic quantum number m, = 0. 1, 2, …·1 (only positive integers up to and including i are allowed); 4. spin quantum number ms =-1, 0, +1 (that is, three allowed values of spin). (a) Assuming that the Pauli exclusion principle remains valid in the distant universe, what is the maximum number of electrons that can populate a given orbital there? Number (b) Write the electronic Formatting: superscript numbers where appropriate but ormit parentheses (c) What is the at Nü

Explanation / Answer

a) Paulix exlcusion principle says no two electrons can have all same quantum numbers and atleast they must differ by spin. Hence orbital can occomodate maximum 3 electrons

b) ml can have only positive values of l which means for p we can have 2 orbitals since for p orbtial l = 1

ml values is 0 , 1    for s orbital ml can have 0

now 8 electrons filled in order is

1s3 2s3 2p2 ,  

c) first noble gas has 1s3 , now second element will have 1s3 2s3 2p6 ( since two p orbitals allowed and each orbital can take 3e- so total 6e-) . Now total e- count = 12e-

atomic number = 12

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