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how to find number of unpaired electrons

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Question:Please explain how you reached your answer. Thank you.

Answers:group 4A, aka 14, the Carbon group have 4 electrons in their outside shell two of those electrons pair up in the S-orbital the other two go into two of the P-orbitals, unpaired ... 1 electron in each your answer is that they have 2 unpaied electrons this is good: http://intro.chem.okstate.edu/AP/2004Norman/Chapter7/Lec111000.html ========================== that said, carbon often will energize an S-orbital electron to the third P-orbital & have 4 unpaied electrons, but you didn't ask for energized

Question:1.) How many unpaired electrons are in the ground state electron configuration for Mn? 2... How many unpaired electrons are in the ground state electron configuration for Fe?

Answers:1) 5 unpaired 3d electrons. 2) 4 unpaired 3d electrons.

Question:Ni2+ b) How many unpaired electrons are in the following complex ion Ni(H2O)62+ You must enter both of the above answers with ONE and ONLY ONE space between. e.g.,4 3 would be a correct answer format

Answers:The electronic configuration for Ni is [Ar] 3d8 4s2, therefore 2+ oxidation state loses the 2 electrons from the 4s2 orbital. This leaves us with 8 electrons in the 3d shell whereby the maximum number is 10, we therefore have 2 unpaired electrons. Bottom level (t2g) of the crystal splitting diagram has (2) (2) (2), and the next level (eg) has (1) (1).

Question:how many of the following elements have 2 unpaired electrons in the ground state? C, O, Ti, Si a) 1 b) 3 c) 4 d) 2

Answers:C: [He] 2s^2 2p^2 ( ), O: [He] 2s^2 2p^4 ( ) Ti: [Ar] 3d^2( ) 4s^2 Si: [Ne] 3s^2 3p^2 ( ) I'll let you count them up. ;)

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Mass number, protons, electrons, neutrons :How to find the Mass number,number of protons, number of electrons, and number of neutrons