The electronic configuration of the element which is just above the element with atomic number 43 in the same-periodic group is
A sudden large jump between the values of third and fourth ionization energies of an element would be associated with the electronic configuration
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Which of the following orbitals has maximum penetration effect ?
The correct order of decreasing first ionization energy is
An element has the electronic configuration 1s22s22p63s23p63d84s2 What will be its position in the periodic table ?
Which of the following ions is smallest in size ?
The number of elements in the fifth period of periodic table is
An element X belongs to fourth period and fifteenth group of the periodic table. Which one of the following is true regarding the outer electronic configuration of X ?
The element with atomic number 113 has recently been discovered. Its electronic configuration would be similar to that of
Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is
Identify the wrong statement in the following.
Element with atomic number 56 belongs to which block?
With which one of the following configurations, the lowest value of first I.E. is associated ?
Match the column I with column II and mark the appropriate choice.
The five successive ionisation energies of the element are 800, 2427, 3658, 25024 and 32824 kJ mol–1 respectively. The number of valence electrons is
The electronic configuration of few elements is given below. Mark the statement which is not correct about these elements.
I. 1s22s22p63s1 II. 1s22s22p5
III. 1s22s22p6 IV. 1s22s22p3
Match the List I with List II and select the correct answers
The first ionization potential of Na is 5.1 eV. The value of electron gain enthalpy of Na+ will be
Following statements regarding the periodic trends of chemical reactivity of the alkali metals and the halogens are given. Which of these statements gives the correct picture ?
Match the atomic numbers given in column I with the block in which the element is placed in column II and mark the appropriate choice.