Classification of Elements and Periodicity in Properties questions
826 published questions with worked solutions.
- Given below are two statements : Statement (I) : According to the Law of Octaves, the elements were arranged in the increasing...
- Given below are two statements : Statement (I) : The radii of isoelectronic species increases in the order. Mg^ 2+ < Na^+ < F^- <...
- First ionisation enthalpy values of first four group 15 elements are given below. Choose the correct value for the element that...
- Electronic configuration of four elements A, B, C and D are given below : (A) 1s^2 2s^2 2p^3 (B) 1s^2 2s^2 2p^4 (C) 1s^2 2s^2...
- The property/properties that show irregularity in first four elements of group-17 is/are (A) Covalent radius (B) Electron...
- Which of the following statements are correct? A. The process of adding an electron to a neutral gaseous atom is always...
- Given below are the pairs of group 13 elements showing their relation in terms of atomic radius. (B < Al), (Al < Ga), (Ga < ln)...
- The incorrect relationship in the following pairs in relation to ionisation enthalpies is
- Given below are two statements: Statement (I) : The first ionisation enthalpy of group 14 elements is higher than the...
- The elements of Group 13 with highest and lowest first ionisation enthalpies are respectively:
- Choose the incorrect trend in the atomic radii (r) of the elements.
- Which of the following atoms has the highest first ionization energy ?
- Both lithium and magnesium display several similar properties due to the diagonal relationship; however, the one which is...
- The group having isoelectronic species is
- The size of the iso-electronic species Cl^-, Ar and Ca^ 2+ is affected by:
- The IUPAC symbol for the element with atomic number 119 would be:
- The element having greatest difference between its first and second ionization energies, is:
- The correct order of the first ionization enthalpies is:
- For Na^+, Mg^ 2+ , F^- and O^ 2- ; the correct order of increasing ionic radii is:
- The correct order of electron affinity is -
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