A. Cu2+ , Ti3+
B. Mn2+ , Cu2+
C. Ti4+ , Cu2+
D. Ti3+ , Ni2+
Which of the following elements has least number of electrons in its M shell ?
The atomic numbers of elements X, Y and Z are 19, 21 and 25 respectively. The number of electrons present in the M shell of these elements follow the order
An electron is moving in Bohr\'s fourth orbit. Its de-Broglie wave length is X. What is the circumference of the fourth orbit
Which of the following pair of transition metal ions, have the same calculated values of magnetic moment
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>