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1. ### What happens to the electrons inside the hydrogen atoms when fusion in the Sun occurs to convert them onto Helium?

... stripped of their electrons. So we really have hydrogen ions merging to form helium ions (alpha particles) during...

7 Answers · Science & Mathematics · 29/07/2019

2. ### a hydrogen line in a star's spectrum has a frequency?

Doppler applies. For a stationary receiver, f = F₀*c/(c + v) ← v -ve if src moving toward rcvr Since the frequency is shifted upward, Altair is moving toward us, and so (4.57e14 + 3.98e10) Hz = 4...

1 Answers · Science & Mathematics · 22/08/2019

3. ### compared with total energy of hydrogen atom in the ground state, the total energy of atom in an excited state is less, greater, or the same?

An excited state has more energy. The term "ground state" means lowest energy state.

1 Answers · Science & Mathematics · 19/05/2019

4. ### how much energy is required to remove an electron from the hydrogen atom if the electron begins at n=1?

The energy of the n=1 level is -13.6 eV relative to the electron being at infinity. So the required energy (ionization energy) is 13.6 eV.

3 Answers · Science & Mathematics · 01/06/2019

5. ### What is the maximal speed that an electron orbits the Nucleus of an hydrogen atom?

Prior to quantum mechanics we thought of the electron as orbiting in circles around a nucleus. The orbital speed could be calculated from kQq/ r^2 = m v^2/r But there were problems with this model. It would certainly...

3 Answers · Science & Mathematics · 28/05/2019

6. ### The Andromeda galaxy is moving toward us at 3.01x105 m/s. By how much will the frequency of the 6.17x1014 Hz hydrogen?

For a stationary receiver (observer), new frequency f = F₀*c/(c + v) ← v -ve if src moving toward rcvr using c = 299 792 458 m/s, new f = 6.17e14Hz * 299792458m/s / (299792458m/s - 3.01e5m/s) new f = 617620107836264.23161624863437674 Hz and so the shift is Δf = f - F₀...

1 Answers · Science & Mathematics · 26/08/2019

7. ### What is the wavelength of a photon that will excite an electron from n=3 to n=5 in a hydrogen atom?

change in energy = R(1/3² - 1/5²) = 1.55e-19 J and change in energy = hv / λ so λ = hv / change in energy = 6.626e−34J·s * 2.998e8m/s / 1.55e-19J λ = 1.282e-6 m = 1.282 µm = 1282 nm

2 Answers · Science & Mathematics · 14/06/2019

8. ### Need help in physics!?

... if the graph shows the light before or after passing through the hydrogen. b) The phrase “connect the wavelengths...” is meaningless...

1 Answers · Science & Mathematics · 01/09/2019

9. ### in stars nuclear fusion process where do electrons go?

...intro on how the process takes place. Firstly the cloud of hydrogen(deuterium/tritium)gas combine together and compress itself due to its own mass...

6 Answers · Science & Mathematics · 31/07/2019

To a good approximation v/c = Δf/f₀ v = cΔf/f₀ = 3x10^8 x 4.26x10^10/(6.17x10^14) = 2.07x10^4 m/s By the way, it's 'Hz', not 'hz'.

3 Answers · Science & Mathematics · 22/07/2019