19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Identify the correct order of the size of the following
Which one of the following ions has the highest value of ionic radius?
Atomic radii of F and Ne, in Å, are given by
Among 3rd-row elements atomic size is maximum for
Which of the following order is correct for the size of Fe3+, Fe, and Fe2+?
The ions O2–, F–, Na+, Mg2+and Al3+are isoelectronic. Their ionic radii show
The correct order of the sizes of C, N, P, S, is
In which of the following pair, both the species are isoelectronic but first one is large in size than the second?
Correct order of radii is
Shielding of the nuclear charge by the inner core of……A…….does not increase. Here, A refers to
Lowest ionization potential in periods is shown by
The electronic configurations of some atoms are given below, which of these should have the highest second ionization energy?
The correct arrangement of the elements in the order of decreasing ionization energies is
The maximum tendency to form uni-positive ion is for the element which has the following electronic configuration
Which element has the highest ionization energy?
An element will have lowest ionisation potential when its electronic configuration is
The order of ionization potential between He+ ion and H-atom (both species are in gaseous state) is
The correct order of second I.E. of C, N, O and F are in the order
Arrange the following atoms in order of increasing first ionization energy K, Cs, Rb, Ca
The element which has highest first ionization energy in the periodic table is
Correct order of first ionization potential among the following elements Be, B, C, N, O is
In a periodic table, on moving from left to right along a period, the metallic character of an element
Alkali metals in each period have
Ionization potential for a noble gas is
The highest first ionization potential is of