Periodic Table Partc The following table lists the possible terms that arise fro

Question

Periodic Table Partc The following table lists the possible terms that arise from a given configuration, Using the table, and Hund's ruiles perform the following Possible Terms for Indicated Configurations Eleetron Configuration Write the term symbol for the ground state of the Li atom. Enter your answer as a term symbol. For example, for 'Sin enter #1S (12). Term Symbol Submt 2P X incorrect; Try Agan: 4 attempts remaining: no points deducted Part D Write the term symbol for the ground state of the Be atom Enter your answer as a term symbol. For example, for 'Sn enter A1s (1/2) 1S (0) 's (2) s, 'G, 'F, 'D, 'P, I, H, G (2), F (2), ?D (3). 2P 2s Previous Answers Correct Part E Write the term symbol for the ground state of the Batom Enter your answer as a term symbol. For example, for 'S/2 enter +1s (12) Submit Request Answer

Explanation / Answer

Part C:

The ground state electronic configuration of Li-atom = 1s2 2s1

Here, the valence electronic configuration is 2s1

Here, no. of unpaired electrons = 1, the spin (s) = 1/2 then the spin multiplicity (2*s+1) = 2*1/2 + 1 = 2

The 'L' value = 0, the corresponding term = S

Here, 2s1 configuration is half-filled, then J = s = 1/2

The term symbol for the ground state of Li-atom = ^2S_(1/2)

Part E:

The ground state electronic configuration of B-atom = 1s2 2s2 2p1

Here, the valence electronic configuration is 2s2 2p1

Here, no. of unpaired electrons = 1, the spin (s) = 1/2 then the spin multiplicity (2*s+1) = 2*1/2 + 1 = 2

The 'l' value = 0+0+1 = 1, the corresponding term = P

Here, 2p1 configuration is less than half-filled, then J = l - s = 1 - 1/2 = 1/2

The term symbol for the ground state of Li-atom = ^2P_(1/2)

Part F:

The ground state electronic configuration of C-atom = 1s2 2s2 2p2

Here, the valence electronic configuration is 2s2 2p2

Here, no. of unpaired electrons = 2, the spin (s) = 2*1/2 = 1 then the spin multiplicity (2*s+1) = 2*1 + 1 = 3

The 'l' value = 0+0+1+0 = 1, the corresponding term = P

Here, 2p2 configuration is less than half-filled, then J = l - s = 1 - 1 = 0

The term symbol for the ground state of Li-atom = ^3P_(0)

Part G:

The ground state electronic configuration of N-atom = 1s2 2s2 2p3

Here, the valence electronic configuration is 2s2 2p3

Here, no. of unpaired electrons = 3, the spin (s) = 3*1/2 = 3/2 then the spin multiplicity (2*s+1) = 2*3/2 + 1 = 4

The 'l' value = 0+0+1+0-1 = 0, the corresponding term = S

Here, 2p3 configuration is half-filled, then J = s = 3/2

The term symbol for the ground state of Li-atom = ^4S_(3/2)

Part H:

The ground state electronic configuration of O-atom = 1s2 2s2 2p4

Here, the valence electronic configuration is 2s2 2p4

Here, no. of unpaired electrons = 2, the spin (s) = 2*1/2 = 1 then the spin multiplicity (2*s+1) = 2*1 + 1 = 3

The 'l' value = 0+0+1+0-1+1 = 1, the corresponding term = P

Here, 2p1 configuration is more than half-filled, then J = l + s = 1 + 1 = 2

The term symbol for the ground state of Li-atom = ^3P_(2)

Part I:

The ground state electronic configuration of F-atom = 1s2 2s2 2p5

Here, the valence electronic configuration is 2s2 2p5

Here, no. of unpaired electrons = 1, the spin (s) = 1/2 then the spin multiplicity (2*s+1) = 2*1/2 + 1 = 2

The 'l' value = 0+0+1+0-1+1+0 = 1, the corresponding term = P

Here, 2p1 configuration is less than half-filled, then J = l + s = 1 + 1/2 = 3/2

The term symbol for the ground state of Li-atom = ^2P_(3/2)

The answers, you have written for Part C and Part I are absolutely correct. I don't know, why it's showing incorrect.

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