Understanding Bohr’s Helium Lines - Physics Forums
2019年8月16日 · Estimated Read Time: 9 minute(s)Common Topics: lines, helium, hydrogen, balmer, lineIntroduction In a previous article “Calculating the Balmer Alpha Line” we mentioned how accurate predictions of the spectral lines of singly ionized Helium were of considerable importance in persuading the scientific community that Danish physicist Niels Bohr was on the right track in respect of...
Bohr energy equation and Ionization energy - Physics Forums
2006年10月11日 · FAQ: Bohr energy equation and Ionization energy 1. What is the Bohr energy equation? The Bohr energy equation, also known as the Bohr model, is a formula used to calculate the energy levels of electrons in an atom. It was developed by Danish physicist Niels Bohr in 1913 and is based on the concept of quantized energy levels. 2.
How Do You Calculate the Bohr Radius for a Helium Ion? - Physics …
2013年10月5日 · The Bohr radius of a helium ion is relatively small compared to other atomic radii. For example, the Bohr radius of a hydrogen atom is twice as large as the Bohr radius of a helium ion. The Bohr radius also decreases as the atomic number increases, reflecting the increasing attraction between the nucleus and the electrons in heavier atoms.
Derivation of velocity in nth Bohr orbit - Physics Forums
2011年3月17日 · In summary, the conversation discusses deriving an expression for the electron's speed in the nth Bohr model and proving that the orbit with the highest speed is the n = 1 orbit. It also mentions the fine structure constant and how it can be verified. The equations used are the momentum equation and the Bohr radius equation.
Exciton Bohr Radius: What is It & Why Does it Matter? - Physics …
2016年12月13日 · It can be derived from the Bohr model of the atom and is given by the equation a B = ε r h 2 /μe 2, where ε r is the relative permittivity of the material, h is Planck's constant, μ is the reduced mass of the electron-hole system, and e is the charge of an electron.
Calculating second ionization energy of He - Physics Forums
2012年9月12日 · Homework Statement The equation En=-Z2RH/n2 gives the energy (according to the Bohr model) of the energy levels available to an electron in any hydrogen-like atom. Calculate the second ionization energy of He(in J). The second ionization energy of He is the ionization energy of He+. Homework...
How did Schrodinger's model improve Bohr's model? - Physics …
2012年10月29日 · 3. Did Schrodinger's model completely replace Bohr's model? No, Schrodinger's model did not completely replace Bohr's model. While Schrodinger's model provided a more accurate and comprehensive description of electron behavior, Bohr's model is still used to explain some aspects of atomic structure, such …
Can we improve the Bohr model or is a new model needed for …
2009年4月10日 · (Of course, Bohr's model, as atoms were concerned, was 'the quantum theory' up until the Schrödinger equation. And then for a short while as 'the classical quantum theory' or 'the old quantum theory'. But nobody's used that terminology since the 1930's to avoid confusion)
Speed of electron in Bohr model - Physics Forums
2009年1月17日 · Homework Statement In the classical Bohr model of the hydrogen atom, the nucleus has one positive electronic charge Q_n = e = +1.602E-19 Coulombs and the single electron (mass = 9.1E-31 kg and Q_e = -e = -1.602E-19 C, one negative electronic charge) orbits the nucleus in a circular orbit. In...
Bohr Model of the Hydrogen atom: Prove that Eo = 13.6 eV
2014年4月8日 · Verify that the equation of the ground state energy Eo of the Bohr atom: E o = (2pi 2 e 4 m e k 2)/h 2 simplifies to Eo = 13.6 eV. Show clearly how the units of the different quantities in the equation simplify to the eV. Homework Equations E o = (2pi 2 e 4 m e k 2)/h 2 The Attempt at a Solution m e = 9.10938291 x 10-19 Kg