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If an electron in a hydrogen atom relaxes to the second energy level emitting a photon of wavelength 410.2 nm what higher energy level did it start at?
Wiki User
∙ 11y ago
There are actually two ways to do this. I'll explain how to use Rydberg's formula, though, because it's significantly simpler to use.
Rydberg's Formula states: 1/(wavelength)=R (1/n1^2-1/n2^2)
R= 1.097x10^7m^-1 (this is Rydberg's constant so you can look this up)
n1=nfinal (or n=2 in this problem)
n2=ninitial (what we are looking to find)
wavelength=lambda=3.97x10^-7m
Set up the problem:
1/3.97x10^-7m=(1.097x10^7m^-1)*(1/2^2-1/n^2)
.2296=1/4-1/n^2
1=.02n^2
n^2=50
n=~7
Alternatively you could have used Bohr's model but that would take two formulas and a lot more work for the same answer (using Bohr's model is simply working backwards from what it is typically used for).
Wiki User
∙ 12y ago
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What is the wavelength of the electromagnetic radiation that will be emitted when an electron relaxes from energy level 2 to the ground state?
Unless you mean hydrogen, I need the Z number ( atomic number) Formula. ( ground state is 1 ) Hertz = (3.29 X 10^23 Hz) * Z^2 * (1/nf^2 - 1/ni^2) final - initial in that parenthesis, so 1 - 2, so to speak then wavelength = speed of light/Hertz
Is it true that when you inhale your diapgragm relaxes?
no
When an element decays what does it lose?
in alpha decay it loses a helium nucleus (2 protons, 2 neutrons)in beta decay a neutron converts to a proton and it ejects an electron and a neutrinoin gamma decay an excited nuclear state relaxes and a gamma photon is emittedin "k-capture" an inner electron is eaten by the nucleus converting a proton to a neutron and it ejects a neutrinothere are also a few other mechanisms.
What happens to the bicuspid valve when the left ventricle relaxes?
opens
What is recipricol innervation in human body?
Basically, as one muscle contracts, the antagonist relaxes
What is the value of n for the level in which the electron originated is an electron in a hydrogen atom relaxes to the 4 level emitting a light of 114 tetra Hz?
6
What is the wavelength of the electromagnetic radiation that will be emitted when an electron relaxes from energy level 2 to the ground state?
Unless you mean hydrogen, I need the Z number ( atomic number) Formula. ( ground state is 1 ) Hertz = (3.29 X 10^23 Hz) * Z^2 * (1/nf^2 - 1/ni^2) final - initial in that parenthesis, so 1 - 2, so to speak then wavelength = speed of light/Hertz
Is relaxes a verb?
Relaxes is a verb; the third person singular of the verb to relax (relaxes, relaxing, relaxed).
What is it called when your heart contracts and relaxes?
Diastolic and systolic is when your heart contracts and relaxes.
When the bicep contacts what muscle relaxes?
When the bicep contracts, the tricep relaxes. These pair of muscles are known as antagonists which means as one contracts, the other relaxes and vice versa.
Could Exhalation occurs when the nose relaxes causing the lungs to contract?
No, exhalation does not occur when the nose relaxes.
Which muscle relaxes when arm is strightened?
The bicep muscle. The tricep contracts to straighten the arm as the bicep relaxes.
What do you do when the diaphrawn relaxes?
exhale
What does Ritalin do?
it relaxes your body
What muscle relaxes and what muscle works?
I think what your after is called an antagonistic pair of muscles, for example the bicep and the tricep. When the bicep is contracting the tricep relaxes and when the tricep is contracting the bicep relaxes.
What is the organ that relaxes and contracts?
heart
Is relaxes a verb or a noun?
is a verb
