Imps of transition and inner transition elements: 1) Explain the electronic configuration of Cr, Cu, Gd, Eu, Tb, Am 2) Explain the position of transition elements in the periodic t... Imps of transition and inner transition elements: 1) Explain the electronic configuration of Cr, Cu, Gd, Eu, Tb, Am 2) Explain the position of transition elements in the periodic table 3) Explain the trends in atomic and ionic radii of the first transition series 4) Calculate the magnetic moment of divalent cation of a transition element with i) Z = 25 ii) Z= 28 5) Explain why transition elements exhibit colour 6) Explain: the compounds of Zn and Hg are colourless 7) Explain Cuprous compounds are colourless 8) Explain the action of KMnO4 on the following in acidic medium i) iodide ions ii) ferrous ions 9) State uses of KMnO4 10) Explain the preparation of potassium dichromate 11) Explain lanthanoid contraction 12) Write short note on the colour of inner transition elements 13) Define i) postactinoids ii) trans uranium elements 14) Distinguish between lanthanoids and actinoids.
Understand the Problem
The question is asking for explanations and calculations related to transition and inner transition elements in chemistry. It covers various aspects such as electronic configurations, their position in the periodic table, trends in atomic and ionic radii, magnetic moments, color characteristics, specific reactions, and comparisons between different elements and groups.
Answer
Transition elements are located in the d-block, filling d-orbitals.
Transition elements are positioned in the d-block of the periodic table, characterized by their filling of the d-orbitals. The first excitation of 4s orbital electrons and then filling of 3d orbitals lead to their nuanced electronic configurations.
Answer for screen readers
Transition elements are positioned in the d-block of the periodic table, characterized by their filling of the d-orbitals. The first excitation of 4s orbital electrons and then filling of 3d orbitals lead to their nuanced electronic configurations.
More Information
The electronic configuration of transition metals such as Cr, Cu, Gd, Eu, Tb, and Am highlights the complexity due to their need to balance energy states across 3d and 4s orbitals. This configuration is crucial to their unique properties like magnetic behavior and color.
Tips
A common mistake is assuming that the 3d orbitals fill before the 4s orbitals, which is true for neutral atoms but changes in ions.
Sources
AI-generated content may contain errors. Please verify critical information
