In Thomson's model and Rutherford's models, the positively charged part of the atom possesses most of the mass
38) In which of the models, the positively charged part of the atom possesses most of the mass?
Answer is:
Thomson's model and Rutherford's model
Explanation:
Related Atoms and Nuclei MCQ with Answers
Answer is:
13.6 eV, ?27.2 eV
Explanation:
kinetic energy is the negative of total energy. K.E. = -E also P.E. is equal to negative of two time of total energy. P.E.=-2E
Answer is:
Lyman series: 103 nm and 122 nm; Balmer series: 656 nm.
Explanation:
In ground state, energy of gaseous hydrogen at room tempertaure= - 13.6 eV. When bombarded with 12.5 eV electron beam, the energy becomes, -13.6 +12.5 = -1.1 eV i.e. electron would jump from n=1 to n=3 where E 3= -13.6/3*3 = -1.5 eV On de-excitation the electron may jump from either n=3 to n=2 givind rise to Balmer series It may also jump from n = 3 to n =1 , giving rise to Lyman series
Answer is:
about the same as predicted by Rutherford's model
Answer is: