19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Mg and Li are similar in their properties due to (VMMC 2010)
The electronic configuration of an element is 1s ,2s 2p ,3s 3p 3d ,4s 4p 4d ,5s 5p . From which group of the period table, it belongs ? (KCET 2012)
Element with atomic number 38, belongs to (MP PMT 2008)
ns and ns outermost electronic configuration belongs to the
The discovery of which of the following group of elements gave a death blow to Newland’s law of octaves? (Manipal 2008)
Molybdenum metal is related to which block?
Which represents the correct order of the first ionization potential of third-period elements? (AFMC 2009)
Identify the wrong statement in the following (AIPMT 2012)
Which of the following is the second most electronegative element?
Elements whose outer electronic configuration vary from ns2np1 to ns2np6 constitute
Increase in atomic size down the group is due to (JCECE 2008)
The transition elements have a characteristic electronic configuration which can be represented as
Diagonal relationship is not shown by (BHU 2008)
The element with atomic number 57 belongs to
The elements with atomic numbers 9, 17, 35, 53, 85 are all
Identify the correct order of the size of the following
Which two elements in the Periodic Table would you expect to combine in the most violent fashion? (Kerala CEE 2008)
The elements ‘X’, ‘Y’, and ‘Z’ form oxides which are acidic, basic, and amphoteric respectively. The correct order of their electronegativity is
Which of the following is not a Dobereiner’s triad?
Which one of the following ions has the highest value of ionic radius?
Which of the following order is correct for the size of Fe³⁺, Fe, and Fe²⁺?
The element with the lowest ionization potential is
Which of the following has the lowest ionization energy?
Ionisation energy decreases down the group due to
Ionization potential for a noble gas is