Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Consider the following
(I) The order of first ionisation enthalpy of first three elements of 
period is 
(II) The element with electronegativity of 3.5 is chlorine
(III) The order of sizes of ions 
and 
is 
(IV)The IUPAC name of the element with atomic number 106 is Bohrium.
The correct statements are
Text Solution
Verified by ExpertsThe correct answer is:
C
Statement (II) is incorrect as oxygen is the element with an electronegativity of 3.5 and not chlorine.
Statement (IV) is incorrect as the element with the atomic number 106 is seaborgium 
) and not Bohrium (Bh)
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