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The barium atom has an emission with wavelength 554 nm green Calculate the frequency of this light and the energy of a photon of this light?
Wiki User
∙ 15y ago
- frequency of this light : c=ln, so n=c/l (and remembering that 1 nm = 1 x10-9 m) = (3.00 x 108 m/s)/554x 10-9 m) = 5.42 x 1014 1/s - the energy of a photon of this light: E(photon) = hn = (6.6262 x 10-34 J·s)(5.42 x 1014 1/s) = 3.59 x 10-19 J
Wiki User
∙ 15y ago
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Why does barium give a green flame test?
The heat of the flame excites the metals ions, causing them to emit visible light. The characteristic emission spectra can be used to differentiate between some elements.SO the characteristic emission spectra of Barium contains wavelengths corresponding to green color.
In a flame test what color flame will barium chloride have?
Barium chloride, or any other barium salt, should burn with a green flame. When a barium salt is burned, the thermal energy is transferred to the outer electrons of the barium ions. They gain enough energy to excite them to a higher energy level. They then drop back to their ground state, releasing energy. This energy corresponds to a wavelength of light, which is emitted from the ion. This wavelength corresponds to green light, hence the green flame observed.
Calculate the molarity of a solution that contains 35.0g of barium chloride dissolved in 450.0ml solution?
2.5
What is the name of BaO in chemistry?
Barium oxide is formed from barium and oxygen.
What is the name of BaCl2.2H2O?
Barium Dichloride is NOT correct. The name is Barium Chloride it is a binary ionic compound.
What is the Wavelength barium?
Barium has an atomic spectra of lines, not only one line (with one wavelength); I reccomend to consult a catalog of spectral lines. See the link below.
Why does barium give a green flame test?
The heat of the flame excites the metals ions, causing them to emit visible light. The characteristic emission spectra can be used to differentiate between some elements.SO the characteristic emission spectra of Barium contains wavelengths corresponding to green color.
What wavelengths within the visible spectrum would most likely contain emission lines for barium?
Barium produces emission lines at at least 21 different wavelengths in the visible range, including at least one each in red, orange, yellow, green, blue, indigo, violet.
In a flame test what color flame will barium chloride have?
Barium chloride, or any other barium salt, should burn with a green flame. When a barium salt is burned, the thermal energy is transferred to the outer electrons of the barium ions. They gain enough energy to excite them to a higher energy level. They then drop back to their ground state, releasing energy. This energy corresponds to a wavelength of light, which is emitted from the ion. This wavelength corresponds to green light, hence the green flame observed.
Why tungsten in cathode ray tube coated with thorium oxide or barium oxide?
Tungsten is used in the cathode ray tube (CRT) because it has a high melting point and good thermionic emission properties, which means it can easily release electrons. The thorium oxide or barium oxide coating on the tungsten helps to improve electron emission efficiency by reducing work function and enhancing electron current. This combination allows for better electron beam production in the CRT.
Calculate the molarity of a solution that contains 35.0g of barium chloride dissolved in 450.0ml solution?
2.5
Does barium form barium peroxide or barium oxide?
Barium oxide
What element has the symbol Ba?
Ba on the periodic table is Barium and its atomic number is 56
What is a slogan to sell barium?
barium barium barium we eat it we garden it so why not need it its fun cool and soft looking barium the element for you
Why is barium carbonate toxic while barium sulphate is not?
Barium sulfate is insoluble in water, while barium carbonate will dissolve. As barium carbonate dissolves in water, it dissociates, and the barium ions are freed. The barium ions are toxic, and that is the crux of the issue.
What is the name of BaO in chemistry?
Barium oxide is formed from barium and oxygen.
How many atoms of fluorine in barium?
Fluorine is an element and barium is also an element. There is no fluorine in barium and not barium in fluorine.
