Advertisements
Advertisements
Question
The following electronic configuration of elements shows highest oxidation state
Options
3d54s2
3d54s1
3d104s2
3d104s1
Advertisements
Solution
3d54s2
Explanation:
The oxidation state of an element depends on the number of electrons it can lose, especially from its outermost orbitals (valence electrons).
APPEARS IN
RELATED QUESTIONS
Name the radioactive element in lanthanoids.
Give the electronic configuration of europium (Z = 63).
Explain the trend in an Oxidation state of 3d elements.
Which of the following statements are FALSE about lanthanoids?
(I) They have lower heat of atomization than transition metals
(II) They are soft metals with silvery white colour and densities of about 7 g cm−3.
(III) They react with water to give the metal hydroxide and oxygen gas.
(IV) They form hydroxides, which are covalent and basic.
Which statement(s) is/are CORRECT about applications of lanthanoid metals/ions and their compounds?
(I) The optoelectronics applications use lanthanoid ions as active ions in luminescent materials.
(II) Lanthanoid compounds are used in television tubes.
(III) Lanthanoids are used in hybrid cars, superconductors and permanent magnets.
The only radioactive element among the lanthanoids is ____________.
When lanthanoids (Ln) are heated to about 2800 K with carbon, the carbides with general formula ____________ are obtained.
What is the general molecular formula of the product obtained on reacting lanthanoids (Ln) with nitrogen?
Which element among the following lanthanoids has the smallest atomic radius?
The observed electronic configuration of promethium (atomic number 61) is ____________.
Which element from following forms colourless compounds in +2 oxidation state?
Identify the correct decreasing order of ionic radii of lanthanoids.
Which among the following lanthanoids has smallest atomic size?
Which one of the lanthanoids given below is the most stable in divalent form?
Lanthanoids and actinoids resemble in ______.
Identify the last element in lanthanoid series.
Which element from following has largest atomic radius?
Give the electronic configuration of gadolinium (Z = 64).
Write expected and observed electron configurations of 58Ce.
Eu (Z = 63) and Yb (Z = 70) show + 2 oxidation state. Explain.
What are the physical properties of lanthanoids?
Define actinoid contraction.
