19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following pairs contain metalloid elements in the periodic table? (Kerala CEE 2017)
Which of the following is the correct order of stability for the given superoxide’s ? (JIPMER 2017) (a) KO RbO CsO (b) CsO RbO KO (c) RbO CsO KO (d) KO CsO RbO
In which of the following options, the order of arrangements does not agree with the variation of the property indicated against it? (NEET 2016) (a) Al Mg Na F (increasing ionic size)
The species Ar, K and Ca contain the same number of electrons. In which order do their radii increase? (AIPMT 2015) (a) Ca Ar K (b) Ca K Ar (c) K Ar Ca (d) Ar K Ca
The stability of +1 oxidation state among Al, Ga, In and TI increases in the sequence (AIPMT 2015)
Amongst the elements with following electronic configurations, which one of them may have the highest ionisation energy ? (AIPMT 2009) (a) Ne 3s 3p (b) Ar 3d 4s 4p (c) Ne 3s 3p (d) Ne 3s 3p
The discovery of which of the following group of elements gave a death blow to Newland’s law of octaves? (Manipal 2008)
An element with atomic number 112 has been made recently. It should be (Haryana PMT 2008)
The outermost electronic configuration of the most electronegative element is
Which of the following isoelectronic ions has the lowest ionization energy?
The correct order of second ionization potential of C, N, O and F is
The ionization energy will be maximum for
A neutral atom will have the lowest ionization potential when electronic configuration is
The highest first ionization potential is of
Ionization potential for a noble gas is
Ionisation energy decreases down the group due to
Which of the following has the lowest ionization energy?
The element with the lowest ionization potential is
In a periodic table, on moving from left to right along a period, the metallic character of an element
Correct order of first ionization potential among the following elements Be, B, C, N, O is
The element which has highest first ionization energy in the periodic table is
Arrange the following atoms in order of increasing first ionization energy K, Cs, Rb, Ca
The correct order of second I.E. of C, N, O and F are in the order
The order of ionization potential between He+ ion and H-atom (both species are in gaseous state) is
An element will have lowest ionisation potential when its electronic configuration is