19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Among 3rd-row elements atomic size is maximum for
Atomic radii of F and Ne, in Å, are given by
Which one of the following ions has the highest value of ionic radius?
Identify the correct order of the size of the following
Which of the following pairs has almost the same atomic radii?
When a chlorine atom becomes chloride ion, its size
Which of the following ions has the smallest radius?
Which one is the correct order of the size of the iodine species.
In comparison to the parent atom, the size of the
Which of the following atom has largest size
The element with atomic number 36 belongs to ........block in the Periodic Table.
The number of elements present in fifth period of Periodic Table is
An element ‘X’ belongs to the fourth period and fifteenth group of the Periodic Table. Which one of the following is true regarding the outer electronic configuration of ‘X’. It has
Element having electronic configuration 1s2, 2s2, 2p6, 3s2, 3p6, 3d10, 4s2, 4p6, 4d10, 5s2, 5p3 belongs to the group in the periodic table
The element with the lowest atomic number that has a ground state electronic configuration of (n-1) d6ns2 is located in the
The elements with atomic numbers 35, 53, and 85 are all ................
Which one of the following pair of elements has similar properties?
Manganese is related to which block of the Periodic Table?
Molybdenum metal is related to which block?
The electronic configuration of an element is 1s2, 2s22p6, 3s23p3. What is the atomic number of the element which is just below the above element in the periodic table?
The element whose electronic configuration is 1s2, 2s2, 2p6, 3s2 is
The transition elements have a characteristic electronic configuration which can be represented as
Without looking at the periodic table, select the elements of IIIA group of the periodic table (atomic numbers are given) :
Which of the following pairs has both members from the same group of periodic table
In the fourth period of the periodic table, how many elements have one or more 4d electrons?