Prime Minister Narendra Modi virtually inaugurated the second campus of Chittaranjan National Cancer Institute (CNCI) in Kolkata on January 07, 2022 in the presence of West Bengal Chief Minister Mamata Banerjee. The new campus has been built at an estimated cost of over Rs 530 crore. Out of this, Rs 400 crores have been provided […]
A body of mass 10 mg is moving with a velocity of 100 ms-1. The wavelength of de-Broglie wave associated with it would be (Note: h = 6.63 × 10-34 Js)
China’s senior diplomat Zhang Ming has taken charge as the new Secretary-General of the Shanghai Cooperation Organisation (SCO) in which India is a member. Zhang has taken charge from Vladimir Norov, former Foreign Minister of Uzbekistan from January 1 for a three-year term. The 65-year-old Zhang replaces Vladimir Norov, a former diplomat from Uzbekistan who
Chinese diplomat Zhang Ming takes charge as new Secretary-General of SCO Read More »
Consider the ground state of Cr atom (Z = 24). The numbers of electrons with the azimuthal quantum numbers, l = 1 and 2 are, respectively
The electrons of the same orbitals can be distinguished by
The electrons of the same orbitals can be distinguished by Read More »
The electronic configuration of silver atom in ground state is
The electronic configuration of silver atom in ground state is Read More »
In the ground state, an element has 13 electrons in its M-shell. The element is_____
In the ground state, an element has 13 electrons in its M-shell. The element is_____ Read More »
The ionization enthalpy of hydrogen atom is 1.312 × 106 J mol-1. The energy required to excite the electron in the atom from n = 1 to n = 2 is
Which one of the following sets of ions represents a collection of isoelectronic species? (Atomic nos.: F = 9, Cl = 17, Na = 11, Mg = 12, Al = 13, K = 19, Ca = 20, Sc = 21)
