5 Questions
Which of the following best defines a transition metal in chemistry?
An element with a partially filled d or f sub-shell
Why are La and Ac sometimes classified as transition metals?
Due to their atomic ground-state configurations being s2d1
Which of the following electronic configurations indicates a transition metal?
[Ar] 4s2 3d1
Which series of elements is classified as f-block elements?
Lanthanide series
What is the typical valence electronic structure of transition metal atoms?
[ns2(n-1)dm]
Study Notes
Transition Metals in Chemistry
- A transition metal is defined as an element that has a partially filled d subshell or can form ions with a partially filled d subshell.
Classification of La and Ac
- La (Lanthanum) and Ac (Actinium) are sometimes classified as transition metals due to their ability to form ions with a partially filled d subshell, similar to the other transition metals.
Electronic Configurations of Transition Metals
- The electronic configuration that indicates a transition metal is one that has a partially filled d subshell, such as d1-10.
f-Block Elements
- The series of elements that are classified as f-block elements are the Lanthanides and Actinides, which include the elements with atomic numbers 57-71 and 89-103, respectively.
Valence Electronic Structure of Transition Metals
- The typical valence electronic structure of transition metal atoms is ns2 (n-1)d1-10, where n is the principal quantum number of the valence shell.
Test your knowledge of main transition metals and inner transition elements with this chemistry quiz. Explore the properties and characteristics of d-block and f-block elements while learning about their significance in the periodic table.
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