Advertisements
Advertisements
प्रश्न
Give the electronic configuration of europium (Z = 63).
Advertisements
उत्तर
Europium (Eu) = [Xe] 4f7 6s2
APPEARS IN
संबंधित प्रश्न
The following electronic configuration of elements shows highest oxidation state
Name the radioactive element in lanthanoids.
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.
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 is the INCORRECT property of lanthanoids?
Which element among the following lanthanoids has the smallest atomic radius?
What is the value of effective magnetic moment found in +3 oxidation state of Chromium (Z = 24)?
The observed electronic configuration of promethium (atomic number 61) is ____________.
Give the properties of Lanthanoids.
The most basic hydroxide from the following is:
Identify the last element in lanthanoid series.
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?
Which from following is a lanthanoid element?
