Class IX

Rutherfords scattering experiment is related the size of:
  1. Nucleus
  2. Atoms
  3. Electron
  4. Neutron
 Two elements X and Y have the same atomic mass but their atomic numbers are 20 and 21 respectively . X and Y are :
  1. Isobars
  2. Isotones
  3. Isomers
  4. Isotopes
The number of electrons which can be aacommodated in an orbital is:
  1. One
  2. Two
  3. Three
  4. Four
Proton was discovered by :
  1. Rutherford
  2. Goldstein
  3. Chadwick
  4. J.J. Thomson
Line spectra are characteristic of:
  1. atoms
  2. molecules
  3. Ions
  4. radicals
Time Elapsed

HR : MIN : SEC
Question Answered
0
Score out of 100
0

Get Started!

we provide the best
services to our students

AmazingCounters.com Views

 

LKG - 12th

Rs 1,999  Annual
Plan
TOP