1) If n = 3 we are in a. K shell b. L shell c. M shell d. F shell
|
||||
2) Water that contains H-2 atoms is called a. heavy water b. light water c. pure water d. chlorinated water
|
||||
3) Electron revolves around the nucleus in orbits which have a. variable energy b. fixed energy c. infinite energy d. zero energy
|
||||
4) In Rutherford's experiment, α particles were deflected because of a. electrostatic repulsion between α particles and positively charged part of atom b. electrostatic attraction between α particles and positively charged part of atom c. electrostatic repulsion between β particles and positively charged part of atom d. electrostatic attraction between γ particles and positively charged part of atom
|
||||
5) The energy of an electron in orbit is proportional to a. distance between shells b. distance from nucleus c. distance between two nuclei d. positive charge inside nucleus
|
||||
6) According to Rutherford, most of the space occupied by the atom is a. filled b. partially filled c. empty d. none of above
|
||||
7) The electronic configuration is the arrangement of electrons in a. nucleus b. shells c. sub-shells d. all of above
|
||||
8) Electrons revolve only in those orbits with angular momentum as an a. half integral multiple of 'h' b. integral multiple of 'h' c. integral multiple of h ⁄ 2π d. half integral multiple of 2π
|
||||
9) After 3s the sub-shell begin to fill is a. 3p b. 3d c. 3f d. 4s
|
||||
10) When an electron jumps from lower orbit to higher orbit a. light is emitted b. electrons are emitted c. electrons are absorbed d. light is absorbed
|