Which of the elements do not fall in stair case of the modern periodic table__________________?

Related Mcqs:

1. Elements in the same vertical group of the periodic table have same_______________?

   A. Number of valence electrons
   B. Atomic number
   C. Atomic mass
   D. Atomic volume

2. Periodic table provides a basic framework to study elements with respect to their__________________?

   A. Physical properties
   B. Chemical properties
   C. Properties of their compounds
   D. All

3. In modern periodic table all the leements are arranged in ascending order of__________________?

   A. Valency
   B. Atomic mass
   C. Atomic number
   D. Valence electrons

4. The longest period in the modern periodic table is___________________?

   A. 6th
   B. 7th
   C. 2nd and 3rd both
   D. 5th

5. Modern periodic table has been divided in ___________ blocks?

   A. 2
   B. 4
   C. 8
   D. 7

6. Which of the p-block elements are not representative elements ?

   A. Alkali metals (I-A)
   B. Group-14 elements (IV-A)
   C. Group-18 elements (VIII-A)
   D. Halogens (VII-A)

7. Best position of hydrogen in the periodic table is above I.A Group which is mainly due to_______________?

   A. Both are electropositive
   B. Similar outer most shell electronic configuration
   C. Both form ionic compounds
   D. All

8. Which one of the following is not a periodic property ?

   A. Melting point of elements
   B. Boiling point of elements
   C. Ionization energy of elements
   D. Coordination number of ions

9. Which discovery caused a revision in the periodic law as stated by Mendeleev ?

   A. Location of nucleus by Rutherford
   B. Atomic number by Moseley
   C. X-rays by Roentgen
   D. Natural radioactivity by Henry Bacquerel.

10. In whole Periodic Table which element Is Most Reducing Agent ?

    A. Chlorine
    B. lithium
    C. Helium
    D. Neon

    Submitted by: Ali Jan