Consider the case hydrogen Chloride molecule `[HCl]`
The chlorine atom with a higher electronegativity attract the shared pair of electrons towards its nucleus. As a result the chlorine atom in hydrogen chloride develops a partial negative charge `delta^-` (delta negative) and hydrogen atom develops a partial positive charge `delta^+`(delta positive) it can be represented below.

Consider the case hydrogen chloride molecule [HCl] The atomic nucleus of which of these elements has a greater tendency to attract the shared pair of electrons?

Consider the case hydrogen chloride molecule [HCl] What is the electronegativity of chlorine?

4^(th) Bohr orbit of a hydrogen like one electron species X coincide with first Bohr orbit of H atom. The number of positive charges in the nucleus of the species X is

In the HCl molecule, the Separation between the nuclei of the two atoms is about 1.27 A (1A =10^(-10)m) Find the approximate location of the centre of mass ofthe molecule Given : chlorine atom is about 35.5 times as massive as a hydrogen atom and nearly all the mass of an atom is concentrated in its nucleus

For one-electron species, the wave number of radiation emitted during the transition of electron from a higher energy state (n_(2)) to a lower energy state (n_(1)) is given by: bar v =(1)/(lamda)=R_(H) xx Z^() ((1)/(n_(1)^(2)) (1)/(n_(2)^(2))) where R_(H)=(2 pi m_(s) k^(2) c^(4))/(h^(3) c) is Rydberg constant for hydrogen atom. Now, considering nuclear motion, the accurate measurement would be obtained by replacing mass of electron (m_(e)) by the reduced mass (mu) in the above expression, defined as mu =(m_(n)xx m_(e))/(m_(n) +m_(e)) where m_(n) = mass of nucleus. For Lyman series, n_(t) =1 (fixed for all the lines) while n_(2) = 2, 3, 4 .... For Balmer series: n_(1) = 2 (fixed for all the lines) while n_(2) = 3,4,5 .... If proton in hydrogen nucleus is replaced by a positron having the same mass as that of an electron but same charge as that of proton, then considering the nuclear motion, the wavenumber of the lowest energy transition of He+ ion in Lyman series will be equal to