QUIZ NO.- 6 1. Which of the following is not an actinoid? A.Curium B.Californium C.Uranium D.Terbium 2.The symbol of atomic number 117 A. Unq B. Uns C. Uus D. Uuh 3. Modern period table based on A. atomic mass B. atomic size C. atomic number D. atomic reactivity 4.The electronic configuration of gadolinium (Atomic number 64) is A. [Xe] 4f 3 5d5 6s2 B. [Xe] 4f 7 5d2 6s1 C. [Xe] 4f 7 5d1 6s2 D. [Xe] 4f 8 5d6 6s2 5.Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is: A. F > Cl > Br > I B. F < Cl < Br < I C. F < Cl > Br > I D. F < Cl < Br < i 6.The period number in the long form of the periodic table is equal to A. magnetic quantum number of any element of the period. B. atomic number of any element of the period. C. maximum Principal quantum number of any element of the period. D. maximum Azimuthal quantum number of any element of the period 7. The elements in which electrons are progressively filled in 4f-orbital are called A. actinoids B. transition elements C. lanthanoids D. halogens 8. Most electronegative atom amongs following A. H B. Na C. Ca D. Be 9. The biggest size A. Sc B. Ti B. V D. Cr 10. Which can not be called transition metal A. Pt B. Hg C. Zr D. Tc
Posted on: Tue, 26 Aug 2014 11:10:23 +0000