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Chemistry
The element of 4th period of the periodic table having maximum number of unpaired electrons in its ground state is
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Q. The element of 4th period of the periodic table having maximum number of unpaired electrons in its ground state is
Classification of Elements and Periodicity in Properties
A
${20}_Ca$
11%
B
${30}_Zn$
16%
C
${33}_AS$
16%
D
${24}_Cr$
57%
Solution:
It is Cr and has configuration $3d^5 \, 4s^1$ i.e., 6 unpaired electrons.