Classification of Elements and Periodicity in Properties questions

826 published questions with worked solutions.

• Electronic configuration of manganese (Z = 25) is _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Zn does NOT show variable valency because of _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The atomic radii of transition elements in a row are _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The ionization potential values of transition metals is _____ p-block elements
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The first ionization energy of the elements of the first transition series (Ti to Cu) _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Which ion has the highest ionic radii?
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The inner transition elements have the general electronic configuration as _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The electronic configuration of gadolinium (atomic number 64) is _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Observed anomalous electronic configuration of some elements in 'd' block is due to _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Atomic number of the element having ns^1 configuration and belonging to 3d transition series would be _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Number of unpaired electrons in chromium atoms are _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The atomic radii from Cr to Cu is almost identical because of _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• In 3d – series, the ionization energy is minimum in case of _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Configuration of La^ +3 will be same as _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Mn^ 7+ involves 2 and 5 electrons of _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Which of the following ions has d^5 electronic configuration?
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The elements has configuration of [ Kr ] ,4d^75s^2. The number of electrons present in its tripositive ion would be _____
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Four successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is...
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• The CORRECT order of decreasing second ionisation enthalpy of Ti(22), V(23), Cr(24) and Mn(25) is _____ [CBSE PMT 2008]
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
• Which of the following ions has the smallest radius?
  MHT CET · Chemistry · Classification of Elements and Periodicity in Properties

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