미해결 질문
In which compound does Ti exhibit greater metallic behavior:TiF2 or TiF6?
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24. Transition Metals and Coordination Compounds
Atomic Radius & Density of Transition Metals
객관식
Which of the following is true about the general trend of first ionization energies in transition metals?
A
(A) First ionization energies increase from left to right for transition metals in all rows.
B
(B) A greater increase from left to right is seen in the third row than in the first and second rows.
C
(C) They increase from left to right for only the first row of transition metals.
D
(A) and (B) are correct.
E
all of the above
검증된 단계별 안내1
Understand the concept of first ionization energy: It is the energy required to remove the outermost electron from a neutral atom in its gaseous state.
Recognize the general trend in the periodic table: For main group elements, first ionization energy generally increases across a period from left to right due to increasing nuclear charge and decreasing atomic radius.
Consider transition metals: Unlike main group elements, transition metals have electrons added to the d subshell, which can affect the trend in ionization energies.
Analyze the trend for transition metals: In the first row of transition metals, ionization energies generally increase from left to right, but this trend is less pronounced in the second and third rows due to electron-electron repulsions and the filling of d orbitals.
Evaluate the options: Option (A) is incorrect because the trend is not consistent across all rows. Option (B) is correct as the third row shows a greater increase. Option (C) is correct for the first row. Therefore, the correct answer is that all of the above statements are true.
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