Atom with higher atomic number produces X-rays of__________________?

Related Mcqs:

1. Atomic mass of an atom is present in the __________?

   A. Shell
   B. Orbit
   C. Nucleus
   D. Orbital

   Submitted by: Aamir khan Hullio

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

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

3. 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

4. Which one is not true about cathode rays ?

   A. 9.11×10-31 Kg
   B. Cast shadow
   C. Heat up the platinum foil
   D. Cannot ionize

5. Positive rays give flash on________________?

   A. AgNO3 plate
   B. AgCl plate
   C. ZnO
   D. ZnS

6. Colour of fluorescene produced by cathode rays depends upon________________?

   A. Temperature
   B. Pressure
   C. Volume
   D. Composition of glass

7. Positive rays are produced__________________?

   A. By burning of gas
   B. By cooling of the gas
   C. By the bombardment of cathode rays on gas molecules
   D. From anode like cathode rays produced from cathode

8. Which of the following properties prove that cathode rays are material in nature_________________?

   A. they cast shadow
   B. they possess momentum
   C. they are negatively charged
   D. all of the above

9. All of the following were theorized by Bohr in his description of the atom except__________________?

   A. Angular momentum of electrons in multiples of h/2?
   B. Electrons revolve in discrete circular orbits
   C. Energy of each electron is directly proportional to n2
   D. Electrons radiate energy continuously in a given orbit.

10. 2nd orbit is ___________ away from nucleus of H-atom as compared to 1st orbit is ?

    A. 2-times
    B. 3-times
    C. 4-times
    D. 6 times