A. Ti2+ and V2+
B. Fe2+ and Cu2+
C. Cr2+ and Fe2+
D. Co2+ and Ti2+
The wavelength of a spectral line emitted by hydrogen atom in the Lyman series is (16/15)hr cm .What is the value of n<sub>2</sub> (R= Rydberg Constant)
The maximum number of sub-levels, orbitals and electrons in N shell of an atom are respectively<br>
What is the correct order of spin only magnetic moment (in BM) of Mn<sup>2+</sup>, Cr<sup>2+</sup> and V<sup>2+</sup> ?
The energy of a photon is 3 x 10<sup>-12</sup> ergs.What is its wavelength in nm ?<br>( h = 6.62 x 10 <sup>-27</sup>ergs-s ; c = 3 x 10 <sup>10</sup> cm/s )
Which one of the following sets correctly represent the increase in the paramagnetic property of the ions
Electrons with a kinetic energy of 6.023 x 10<sup>4</sup> J/mol are evolved from a surface of a metal, when it is exposed to radiation of wavelength of 600 nm, The minimum amount of energy required to remove an electron from the metal atom is <br>
The wavelengths of electron waves in two orbits is 3 : 5. The ratio of kinetic energy of electrons will be
How many electrons are present in the M shell of an atom of an clement with atomicnumber 24 (Z = 24) ?
5.85 gms of NaCl (Mol. wt. 58.5) is dissolved in water and the solution made up to 500ml; the molarity of the solution will be
The quantum number which explains the line spectra observed as doublets in case of hydrogen and alkali metals and doublets and triplets in case of alkaline earth metals is