Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
Olympiad workbookNSECClassification of Elements and Periodicity in Properties

The energy required to remove an electron from a gaseous species ' X ' to form ' X '. is known as first ionization energy (IE) of X . The energy required to remove an electron from a gaseous species ' X ⁺ ' to form ' X ⁺⁺ ' is called the second IE of X . Similarly, the energy required to remove an electron from a gaseous species X ⁻ to form X is called the IE of X ⁻ . Identify the correct statement/s from the followi

Options

  1. AThe second IE of the He atom is four times that of the (first) IE of the H atom.
  2. BThe first IEs of F, Ne and Na atoms follow the order IE ( Na ) < IE ( Ne ) < IE ( F )
  3. CThe second IE of the H ⁻ ion is much less than the (first) IE of the H atom.
  4. DThe IEs of Li , Na and K atoms follow the order IE ( K ) < IE ( Na ) < IE ( Li )

Correct answer

D. The IEs of Li , Na and K atoms follow the order IE ( K ) < IE ( Na ) < IE ( Li )

Step-by-step solution

No solution

Practice Classification of Elements and Periodicity in Properties on Quantrex Academy →

More from Classification of Elements and Periodicity in Properties

Which of the following accounts best for the fact that F ⁻ is smaller than O ²⁻ ?Which of the following is correct about the isoelectronic species, Li ⁺ and H ⁻ ? I. H ⁻ is larger in size than Li ⁺ II. Li ⁺ is a better reducing agent than H ⁻ III. It requires mN ³⁻, F ⁻, Na ⁺ and Mg ²⁺ have the same number of electrons. Which of them will have the smallest and the largest ionic radii respectively?The following qualitative plots depict the first, second and third ionization energies (I.E.) of Mg , Al and K . Among the following, the correct match of I.E. and the metal isAmong the following, the correct statement/s about 'p' block elements is/are I. The valence shell electronic configuration of all of them is ns ^2 np ¹⁻⁶ II. Only in p block, metalOxide A is soluble in NaOH , oxide B in HCl and oxide C in both. The correct set of A , B and C isThe correct order of ionic radii of Rb ⁺, Br ⁻, Sr ²⁺ and Se ²⁻ isIf an element after oganesson ( Og , atomic number 118 and electronic configuration [ Rn ] 5 f ¹⁴ 6 ~d ¹⁰ 7 ~s ^2 7 p ^6 ) was discovered, in which of the following orbital, will t Full Classification of Elements and Periodicity in Properties list All Olympiad workbook PYQs