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UPSC 2017 CDS I GK Paper
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© examsnet.com
Question : 42
Total: 120
The chemical properties of an element depend upon
[2017 CDS-I]
the number of isotopes of the element
the mass number of the element
the total number of neutrons in the element
the number of electrons in the outermost shell of the element
Validate
Solution:
The chemical properties of an element depend upon the number of electrons in the outermost shell of an element, because electrons play the most important role in bond formation and dissociation. Hence, option (d) is correct.
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