In the periodic table, which electronic subshells are progressively filled in the second transition series, the actinides and the lanthanides?
A - VCE - SSCE Chemistry - Question 10 - 2003 - Paper 1
Question 10
In the periodic table, which electronic subshells are progressively filled in the second transition series, the actinides and the lanthanides?
A.
2nd transition se... show full transcript
Worked Solution & Example Answer:In the periodic table, which electronic subshells are progressively filled in the second transition series, the actinides and the lanthanides?
A - VCE - SSCE Chemistry - Question 10 - 2003 - Paper 1
Step 1
A. 2nd transition series: 3d, actinides: 4f, lanthanides: 5f
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Answer
This option is incorrect. The 2nd transition series corresponds to the filling of the 3d subshell, while the actinides and lanthanides fill the 5f and 4f subshells respectively.
Step 2
B. 2nd transition series: 4d, actinides: 5f, lanthanides: 4f
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Answer
This option is the correct choice. The 2nd transition series fills the 4d subshell, while the actinides fill the 5f subshell and the lanthanides fill the 4f subshell.
Step 3
C. 2nd transition series: 4d, actinides: 6d, lanthanides: 5f
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This option is incorrect. The 6d subshell is not commonly filled in the context of the actinides.
Step 4
D. 2nd transition series: 5d, actinides: 5f, lanthanides: 4f
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Answer
This option is incorrect. The 2nd transition series does not correspond to the 5d subshell; it should be the 4d subshell.
