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Nadya [2.5K]
3 years ago
15

Explain why an atom can only emit specific wavelengths of light and not every possible wavelength

Chemistry
1 answer:
ella [17]3 years ago
5 0

Answer:

<em>The electrons in an atom can only occupy certain allowed energy levels to a lower one</em>, the excess energy is emitted as a photon of light, with its wavelength dependent on the change in electron energy. This is why an atom can only emit specific wavelengths of light and not every possible wavelength.

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The satellite image above shows a portion of the Namib Desert in Africa. This is an ancient, sandy desert with dunes that can be
erastovalidia [21]

Answer:

blowing wind

Explanation:

in a desert there is no water so that cuts the first two out. then for the wind... well there are no mountains or buildings in the desert to block the wind. the last answer, crustial uplift... how often does that happen... =)

3 0
4 years ago
Molecular iodine, I2 (g), dissociates into iodine atoms at 545K with a first order rate constant of 0.344 1/s. If you start with
Dennis_Churaev [7]

Answer:

0.00915 M of I_2 remain after 5.16 seconds.

Explanation:

Using integrated rate law for first order kinetics as:

[A_t]=[A_0]e^{-kt}

Where,  

[A_t] is the concentration at time t

[A_0] is the initial concentration

Given that:

The rate constant, k = 0.344 s⁻¹

Initial concentration [A_0] = 0.054 M

Final concentration [A_t] = ? M

Time = 5.16 s

Applying in the above equation, we get that:-

[A_t]=0.054e^{-0.344\times 5.16}\ M=\frac{1\times \:0.054}{e^{1.77504}}\ M=0.00915\ M

<u>0.00915 M of I_2 remain after 5.16 seconds.</u>

3 0
3 years ago
____is not a resource that can be used to help meet our energy needs
Bezzdna [24]
I believe the answer to this is A. 
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3 years ago
Which of the following elements has the strongest ionization energy: Mg or Cl? Define ionization
Mila [183]

Answer:

Cl

Explanation:

The element Cl will have the strongest ionization energy from the given choices. Most non-metals have higher ionization energy compared to metals.

Ionization energy is the energy required to remove the most loosely held electron from the gaseous phase of an atom.

  • As you go from left to right on the periodic table, it increases progressive
  • From top to bottom, the ionization energy reduces significantly.
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5 0
3 years ago
Diamond cannot conduct electricity but graphite can,why​
zavuch27 [327]

Diamond does not conduct electricity because it has no delocalized electron to conduct electricity.

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3 years ago
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