Lanthanides lanthanum electron configurationLanthanum and the fblock elementsURDUHINDI SAAD

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The lanthanides are a group of 15 chemical elements, with atomic numbers 57 through 71. All of these elements have one valence electron in the 5d shell

lanthanum electron configuration, f block elements, Periodic table, Chemistry, Lanthanides in chemistry, Lanthanides
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