Ch-5 Atomic Structure

An orbital can accommodate maximum electrons:

Lyman Series is obtained when electron in an atom jumps from higher energy level to:

When 6d orbital is complete, the entering electron goes into:

Lyman series occur in:

e/m value for positive rays is maximum for:

According to Bohr's atomic model, radius of second orbit of hydrogen atom is:

The limiting line of Balmer series lies in the region:

Free neutron decays into a proton with the emission of an electron and a_______:

Bohr's model of atom is contradicted by:

What is the value of (n + l) for the 3s sub-shell?

K-series X-Rays have wavelength:

Mass of one mole of electron is:

For the P sub shell the azimuthal quantum number "l"is:

When the Azimuthal quantum number is 3 then 'm' can have:

If an electron is free from the attraction of nucleus then its energy is:

Which one of the following series lies in ultraviolet region:

The d-subshell consists of:

Lines of Paschen series are produced when electrons jump from higher orbits to --------- orbit.

The electronic configuration of an atom is 1s2,2s2,2p4. The number of unpaired electrons in this atom is:

An orbital which is spherical and symmetrical is:

Bambardment of a-particles on Beryllium (Be) atom, emits neutron and this process is called:

Splitting of spectral lines when atoms are subjected to strong magnetic field is called:

In discharge tube experiment, the pressure of gas was maintained at:

When 4s orbital is complete, the electron goes into:

The electrons occupying an orbital are distinguished by:

Total number of spectral regions in sunlight spectrum is:

The mass of proton is (in kg):

Balmer series in hydrogen spectrum lies in the region:

Angstrom is the unit of:

Negative charge on cathode rays we established by: