Related InterviewSolutions

• The element with atomic number 17 has the least size among all the elements of that period
• The elctorn affinity increases on moving form left to right along a period .Arrange the reason in a proper sequenceA. 1324B. 3241C. 3142D. 4321
• Which among the following pairs of elements have maximum and minimum electron affinity values respectively?A. Be,CIB. He,LKC. Be,SD. CI,Cs
• X nelongs ot IA or first rop and fifth period and y succeeds X in the group .Z succeeds Y in the period Arrange the suitable statement in the correct sequence in order ot arrnge X,Y and Z in the incresing order of their atomic sizesA. dbcaB. bdcaC. cadD. dca
• Element X has 12 neutorns in its nucleous .To which group in the periodic table would it belongs?A. 1B. 2C. 3D. cannot be predicated
• The formula of iron formed by and element A is `A^(2+)` The element A can probly belong to which of the following groups?A. IIIAB. VIIAC. IIAD. IA
• The element which accepts electrons readily to form anion belongs toA. VII A group and second periodB. VII A group and third periodC. O group and third periodD. VI A group and third period
• The chemistry of alkali metals is essentially the chemitry of unipositive ions becasuseA. they have low ionisation energy valuesB. they have strong tendency to lose single valence electronC. second ionidatin energy values are very highD. all the above
• `Na^(+),F^(-)` and `Mg^(+2)` ions have the sameA. sizeB. electronic configurationC. ionisation energyD. nuclear charge
• Galliu is more electronegative of the elements decrease down the group .It is due to ______A. increase in the atomic sizeB. increase in the ionisation energyC. increase of effective nuclear chargeD. all the above