व्हाट इज नंबर ऑफ द इलेक्ट्रॉन इन सीआर प्लस 3 आई एम दो
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Chromium is the 24th element in the periodic table.
The atomic number of chromium is 24 and the atomic mass is 51.996 amu. symol is cr.
electronic configuration of Cr=[Ar]3d5,4s1 or 1s2,2s2,2p6,3s2,3p6,3d5,4s1.
Cr3+=[Ar]3d3
Hence, there are 3 unpaired electrons in Cr3+
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