Atom cannot be divided into simple unitstheorized by________________?

A. Rutherford
B. Dalton
C. Bohr
D. Schrodinger

The number of fundamental particles in an atom of the lightest isotope carbon are_______________?

A. 6
B. 12
C. 18
D. 20

Increase in atomic number is observed during_________________?

A. Alpha emission
B. Beta emission
C. Both a & b
D. Radioactivity

Free neutron changes into proton with the emission of__________________?

A. Neutrino
B. Electron
C. Both a & b
D. Meson

Charge of electron was measured by__________________?

A. J.j thomson
B. Millikan
C. Rutherford
D. Perrin

Rutherford bombarded _________________ particles in discovery of nucleus?

A. Gamma-rays
B. Alpha-rays
C. Beta-rays
D. X-rays

The maximum number of orbitals present in a subshell that is represented by Azimuthal quantum number = 3 will be________________?

A. 1
B. 3
C. 5
D. 7

When electron jump into orbit 1 then series obtained is___________________?

A. Lyman
B. Paschen
C. Pfund
D. Brackett

Splitting of spectral lines when atoms are subjected to strong electric filed is called_________________?

A. Zeeman effect
B. Stark effect
C. Photoelectric effect
D. Compton effect

Three quantum number have been derived from equation of____________________?

A. De-broglie
B. Plancks
C. Schrodinger
D. Heisenberg