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Questions and Answers
Which elements are considered d-block elements?
Which elements are considered d-block elements?
- Elements with a partially filled s-orbital
- Elements with a partially filled d-orbital (correct)
- Elements with a completely filled s-orbital
- Elements with a completely filled d-orbital
What is the most stable oxidation state of a transition element?
What is the most stable oxidation state of a transition element?
- Completely filled s-orbital
- Partially filled d-orbital (correct)
- Partially filled s-orbital
- Completely filled d-orbital
What is the electron configuration of Cu2+ (Cupric ion)?
What is the electron configuration of Cu2+ (Cupric ion)?
- 1s2 2s2 2p6 3s2 3p6 3d8
- 1s2 2s2 2p6 3s2 3p6 3d10 4s1
- 1s2 2s2 2p6 3s2 3p6 3d9 (correct)
- 1s2 2s2 2p6 3s2 3p6 3d11
What is the position of d-block elements in the periodic table?
What is the position of d-block elements in the periodic table?
What is the change in properties of d-block elements compared to s-block and p-block elements?
What is the change in properties of d-block elements compared to s-block and p-block elements?
Which elements are considered transition elements?
Which elements are considered transition elements?
What is the electron configuration of Cu in its ground state?
What is the electron configuration of Cu in its ground state?
What is the oxidation state of Cu2+ (Cupric ion)?
What is the oxidation state of Cu2+ (Cupric ion)?
Where are d-block elements located in the periodic table?
Where are d-block elements located in the periodic table?
What is the general trend in properties of d-block elements compared to s-block and p-block elements?
What is the general trend in properties of d-block elements compared to s-block and p-block elements?
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Study Notes
D-Block Elements
- D-block elements are elements in groups 3-12 of the periodic table.
- These elements are also known as transition metals.
Characteristics of D-Block Elements
- The most stable oxidation state of a transition element is +2 or +3.
- D-block elements exhibit a change in properties compared to s-block and p-block elements, such as multiple oxidation states and the ability to form colored ions.
Electron Configuration
- The electron configuration of Cu2+ (Cupric ion) is [Ar] 3d9.
- The electron configuration of Cu in its ground state is [Ar] 3d10 4s1.
Position in the Periodic Table
- D-block elements are located in the d-block section of the periodic table, which is between the s-block and p-block sections.
- They are in groups 3-12 of the periodic table.
Oxidation States
- The oxidation state of Cu2+ (Cupric ion) is +2.
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