EASY
Earn 100
Name the following:
The amount of energy released when an electron is added to a neutral isolated gaseous atom in the ground state. (Electronegativity/ Electron affinity)
50% studentsanswered this correctly
Important Questions on Classification of Elements and Periodicity in Properties
MEDIUM
The electronegativities of and are in the order -
EASY
The first ionization enthalpies for three elements are and , respectively. The correct sequence of the element is:
EASY
Which element has the highest first ionization potential?
MEDIUM
Which one of the following has largest ionic radius ?
MEDIUM
The ionic radii of and are respectively:
EASY
The electronic configuration with the highest ionization enthalpy is:
EASY
The effective nuclear charge of an element with three valence electrons is . What is the atomic number of the element?
MEDIUM
For the second period elements the correct increasing order of first ionization enthalpy is:
EASY
The first ionisation potential of Na is 5.1 eV. The value of electron gain enthalpy of Na + will be :
MEDIUM
Which of the following represents the correct order of increasing first ionization enthalpy for ?
EASY
Which of the following atoms has the highest first ionization energy?
EASY
When the first electron gain enthalpy of oxygen is , its second electron gain enthalpy is:
MEDIUM
Give a reason for the following.
Ionisation potential increases across a period, from left to right.
EASY
Among the element Li, N, C and Be, one with the largest atomic radius is
MEDIUM
The element having the greatest difference between its first and second ionization energies, is
MEDIUM
In comparison to boron, beryllium has:
MEDIUM
The size of the iso-electronic species , Ar and is affected by:
EASY
The species and contain the same number of electrons. In which order do their radii increase?
EASY
The correct order of atomic radii is:
MEDIUM
In which of the following options the order of arrangement does not agree with the variation of property indicated against it?
