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प्रश्न
Give the electronic configuration of europium (Z = 63).
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उत्तर
Europium (Eu) = [Xe] 4f7 6s2
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संबंधित प्रश्न
Name the radioactive element in lanthanoids.
Explain the trend in an Oxidation state of 3d elements.
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(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.
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