Atoms and Nucle...

The key feature of Bohr\'s theory of spectrum of hydrogen atom is the quantization of angular momentum when an electron is revolving around a proton. We will extend this to a general rotational motion to find quantized rotational energy of a diatomic molecule assuming it to be rigid. The rule to be applied is Bohr\'s quantization condition.

The key feature of Bohr\'s theory of spectrum of hydrogen atom is the quantization of angular momentum when an electron is revolving around a proton. We will extend this to a general rotational motion to find quantized rotational energy of a diatomic molecule assuming it to be rigid. The rule to be applied is Bohr\'s quantization condition. In a CO molecule, the distance between C (mass =12 amu) and O (mass =16 amu), where

The activity of a freshly prepared radioactive sample is 10¹⁰ disintegrations per second, whose mean life is 10⁹ s. The mass of an atom of this radioisotope is 10^–25 kg. The mass (in mg) of the radioactive sample is

Four physical quantities are listed in Column I. Their values are listed in Column II in a random order

Which sample contains greater number of nuclei: a 5.00 – μCi sample of ²⁴⁰Pu (half-life 6560y) or a 4.45 – µCi sample of ²⁴³Am (half-life 7370y)?

How much work must be done to pull apart the electron and the proton that make up the Hydrogen atom, if the atom is initially in the state with n = 2 ?

When a sample of solid lithium is placed in a flask of hydrogen gas then following reaction happened