Which of the following have their outer most shell complete in atomic form ?

Related Mcqs:

1. Geometry of molecule will be pyramidal if the outer post shell of the central atom has___________________?

   A. 3 bond pair one lone pair
   B. 2 bond pair 2 lone pair
   C. 1 bond pair 3 lone pair
   D. 3 lone pair 1 bond pair

2. According to VESPR Model the geometry of molecule having 5 bond pair in outer most shell will be __________________?

   A. Triangular
   B. Square planner
   C. Trigonal bipyramidal
   D. Octahedral

3. The atomic radii decreases by increasing atomic number in________________?

   A. Alkali metal
   B. Alkaline earth metal
   C. Elements from Li to Ne
   D. Halogens

4. Which one of the following is the correct sequence according to atomic weights?

   A. Fe>Co> Ni
   B. Co > Ni > Fe
   C. Ni> Co> Fe
   D. Co >Fe>Ni

   Submitted by: Muhammad Ali Kunbhar

5. In a period the atomic radius ?

   A. Increases
   B. Decreases
   C. Remain same
   D. First decreases then increases

6. Molecular orbital which have higher energy than atomic orbitals is called___________________?

   A. Bonding molecular orbital
   B. Antibonding molecular orbital
   C. Hybrid orbital
   D. Super atomic orbital

7. Atom with higher atomic number produces X-rays of__________________?

   A. Shorter wavelength
   B. Larger wavelength
   C. X-ray not produced
   D. All are possible

8. The atoms of same element having same atomic number but different mass number are called____________________?

   A. Isobars
   B. Isomers
   C. Isotopes
   D. Isotropes

9. The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?

   A. 1.8 gram of H₂O
   B. 12 moles of KMnO₄
   C. 0.6N H₂SO₄
   D. 4.6 gram of C₂H₅OH

   Submitted by: Muhammad Ali Kunbhar

10. In a group, atomic radii increase due to successive increase of _________ ?

    A. Electronic shells
    B. Proton shells
    C. Neutron shells
    D. Nucleus

    Submitted by: Rashid Mehmood