How many emission lines are possible for hydrogen?
four
What is the emission spectrum of hydrogen?
Emission Spectrum of Hydrogen. When an electric current is passed through a glass tube that contains hydrogen gas at low pressure the tube gives off blue light. When this light is passed through a prism (as shown in the figure below), four narrow bands of bright light are observed against a black background.
What do the lines in the hydrogen spectrum represent?
For example, the hydrogen atom has a spectroscopy in which there are a three series of lines, which each represent a type of radiation: visible radiation, uv radiation, and infrared radiation.
What are the four emission lines of hydrogen in the visible region?
The visible spectrum of light from hydrogen displays four wavelengths, 410 nm, 434 nm, 486 nm, and 656 nm, that correspond to emissions of photons by electrons in excited states transitioning to the quantum level described by the principal quantum number n equals 2.
What is wrong about emission spectrum of hydrogen?
Answer: The number of lines does not equal the number of electrons in an atom. For example, hydrogen has one electron, but its emission spectrum shows many lines. Hence, the photons of an emission spectrum represent a variety of possible energy levels.
Which transition causes the emission line at the shortest wavelength?
Which transition causes the emission line at the shortest wavelength? From the transitions, we can see that energy involved from the transition of E to C is the largest energy involved (longest arrow) which makes it having the shortest wavelength.
Why do emission lines vary in intensity?
The more atoms undergoing a particular transition, the more intense the emission line will be. The intensity depends on the density and temperature of the gas. An absorption line is produced when a photon of just the right energy is absorbed by an atom, kicking an electron to a higher energy orbit.
Why do we see emission lines when electrons return to the ground state?
Emission lines occur when the electrons of an excited atom, element or molecule move between energy levels, returning towards the ground state. For this reason, we are able to identify which element or molecule is causing the spectral lines.
What do emission lines tell us?
The science of spectroscopy is quite sophisticated. From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star. The spectral line also can tell us about any magnetic field of the star. The width of the line can tell us how fast the material is moving.
How do I calculate the number of emission lines?
For example, suppose one atom with an electron at energy level 7 (n2=7). That electron can “de-excite” from n2=7 to n1=6,5,4,3,2, or 1. All those transitions give one spectral line for each. Thus, total of 1×6=n1(n2−n1) (foot note 1) spectral lines would be present in the spectrum.
What is Corona in sun?
Definition: Corona is a luminous envelope of plasma that surrounds the Sun and other celestial bodies. It is extended to millions of kilometres into space and is commonly seen during a total solar eclipse. The matter in the external part of the atmosphere of the Sun is composed of plasma which has very low density.
What part of the sun is the coolest?
photosphere
Does the sun have a Corona?
The corona is the outer atmosphere of the Sun. It extends many thousands of kilometers (miles) above the visible “surface” of the Sun, gradually transforming into the solar wind that flows outward through our solar system. The material in the corona is an extremely hot but very tenuous plasma.
What is hotter than the sun?
Air is a very poor conductor of electricity and gets extremely hot when lightning passes through it. In fact, lightning can heat the air it passes through to 50,000 degrees Fahrenheit (5 times hotter than the surface of the sun).
What color is the corona of the sun?
white
How far does our sun’s light reach?
94.5 million miles
How old is the Sun’s light?
between 10,000 and 170,000 years
Do we see the sun 8 minutes later?
3 Answers. Yes, you are right. We don’t only see the Sun 8 minutes in the past, we actually see the past of everything in space. The further an object is from us the longer its light takes to reach us since the speed of light is finite and distance in space are really big.
How close can you get to the sun before it kills you?
If a spacecraft were to be wrapped up in that kind of shielding, it would get to within 1.3 million miles of the sun. The integrity of the shielding would be compromised well before that, so, theoretically, you could make it to that distance before become fried to death.
What is the closest anyone has gotten to the sun?
On the final three orbits, Parker Solar Probe flies to within 3.8 million miles of the Sun’s surface — more than seven times closer than the current record-holder for a close solar pass, the Helios 2 spacecraft, which came within 27 million miles in 1976, and about a tenth as close as Mercury, which is, on average.
Can you land on the sun?
You can’t stand on the surface of the Sun even if you could protect yourself. The Sun is a huge ball of heated gas with no solid surface. The Sun’s surface is always moving. The Surface: On the surface of the Sun, gases move in a rolling motion called convection.
Can man go to the Sun?
But the trip is long — the sun is 93 million miles (about 150 million kilometers) away — and we don’t have the technology to safely get astronauts to the sun and back yet. The sun’s surface is about 6,000 Kelvin, which is 10,340 degrees Fahrenheit (5,726 degrees Celsius). The sun would melt anything that got near it.
What if you fell into the sun?
As soon as you reached the Sun itself, you would sink. The sun’s density is less than 1 — and 1 is the density of water. So you would be sucked inside kind of. Except that there are convection currents.
Is there any satellite on Sun?
NASA’s Parker Solar Probe is the first-ever mission to “touch” the Sun. The spacecraft, about the size of a small car, travels directly through the Sun’s atmosphere –ultimately to a distance of bout 4 million miles from the surface. Parker Solar Probe launched aboard a Delta IV-Heavy rocket from Cape Canaveral, Aug.