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How many halffilled orbitals are there in a manganese (atomic number 25) atom?
A. 4
B. 1
C. 5
D. 3
E. 2
 9 months ago
 9 months ago
How many halffilled orbitals are there in a manganese (atomic number 25) atom? A. 4 B. 1 C. 5 D. 3 E. 2
 9 months ago
 9 months ago

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ANISH95Best ResponseYou've already chosen the best response.1
no. its not, write the electronic config.
 9 months ago

RHBest ResponseYou've already chosen the best response.0
1s2 2s2 2p6 3s2 3p6 3d5 4s2
 9 months ago

ANISH95Best ResponseYou've already chosen the best response.1
the complete electronic configuration
 9 months ago

ANISH95Best ResponseYou've already chosen the best response.1
absolutely. correct. gd!
 9 months ago

ANISH95Best ResponseYou've already chosen the best response.1
now how many unpaired electrons are there
 9 months ago

RHBest ResponseYou've already chosen the best response.0
can you explain how to know how many unpaired electrons there are?
 9 months ago

ANISH95Best ResponseYou've already chosen the best response.1
except for 3d, each orbital has even number of electrons, which implies paired electrons. do you know how many orbitals are there in d
 9 months ago

ANISH95Best ResponseYou've already chosen the best response.1
yes.... right, now you see that 3d subshell has 5 orbitals and 5 electrons are to be housed in these 5 orbitals. try to fill 5 electrons in 5 orbitals. you will have the answer,
 9 months ago

ANISH95Best ResponseYou've already chosen the best response.1
u know hund's rule of maximum multiplicity? the only way to do this is to fill each orbital with 1 electron and this arrangement will give you 5 alone electrons.....(which are not paired up)
 9 months ago

RHBest ResponseYou've already chosen the best response.0
I think I understand now. but how do you know which rule to use to find halffilled orbitals?
 9 months ago

ANISH95Best ResponseYou've already chosen the best response.1
there are three main rules to write electronic configurations. 1) afbau principle 2) hunds rule of maximum multiplicity 3) pauli's exclusion principle..................... this last one is of minimal importance in writing configurations but you must learn the above two to know how to write electronic configuration
 9 months ago

RHBest ResponseYou've already chosen the best response.0
so there are 5 half filled orbitals in a manganese atom?
 9 months ago
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