1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vladimir1956 [14]
3 years ago
8

When an electron in a 2p orbital of a particular atom makes a transition to the 2s orbital, a photon of approximate wavelength 6

46.3 nm is emitted. The energy difference between these 2p and 2s orbitals is:_________a. 3.07 Ã 10^â28 Jb. 3.07 Ã 10^â19 Jc. 3.07 Ã 10^â17 Jd. 1.28 Ã 10^â31 Je. none of these
Chemistry
1 answer:
Mariulka [41]3 years ago
3 0

Answer:

The energy difference between these 2p and 2s orbitals is 3.07\times 10^{-19} J

Explanation:

Wavelength of the photon emitted = \lambda =646.3 nm =646.3\times 10^{-9} m

Energy of the photon will corresponds to the energy difference between 2p and 2s orbital = E

Energy of the photon is given by Planck's equation:

E=\frac{hc}{\lambda }

h = Planck's constant = 6.626\tiomes 10^{-34} Js

c = Speed of the light = 3\times 10^8 m/s

E=\frac{6.626\tiomes 10^{-34} Js\times 3\times 10^8 m/s}{646.3\times 10^{-9} m}

E=3.07\times 10^{-19} J

The energy difference between these 2p and 2s orbitals is 3.07\times 10^{-19} J

You might be interested in
Measure of the average kinetic energy of molecules in an in an object
algol13
Yes because molecules is solid
8 0
2 years ago
If you wanted to protect water from freezing, which of the compounds below would accomplish this best. NaNO3, Mg(NO3)2, or Al(NO
Korvikt [17]
All of them are soluble salt.

First one dissociates into two ions.

The second one dissociates into 3 ions.

The third dissociate into 4 ions. therefore, Al(NO3)3
4 0
3 years ago
Were are electrons located
lukranit [14]
Electrons are found in the cloud that's surrounded the nucleus of an atom 
8 0
3 years ago
Read 2 more answers
Which processes must happen for sand to eventually become metamorphic rock? In one to two sentences, name and briefly describe t
trapecia [35]

Answer:

Sand may be deposited as sediments that become sedimentary rocks after hardening, or lithifying. Extreme burial pressure, rising temperature at depth, and a lot of time, will transform just about any rock to become a metamorphic rock.

Explanation:

4 0
3 years ago
In case of accidental contact with chemicals, how long should the eyes be flushed at the eyewash station
FromTheMoon [43]

Answer:

See the answer below

Explanation:

<em>The duration of flushing the eyes at the eyewash station in case of accidental contact with chemicals depends of the nature of the chemical.</em>

If the chemical is known to be a <u>non-irritant or mild-irritant</u> one, a <u>5-minute </u>washing time is recommended as the first aid. before seeking the help of a physician,

For <u>moderate to severe irritant</u> chemicals, an immediate <u>15-20 minutes</u> washing period is recommended before seeking further medical help.

For <u>corrosive and strong alkalis</u> chemicals, <u>30 and 60 minutes</u> washing are recommended respectively before seeking the attention of a physician.

However, if the nature of the chemical is unknown,<u> a minimum of 20-minutes washing is generally recommended</u> as first aid before seeking immediate medical help.

6 0
2 years ago
Other questions:
  • How much heat must be removed from 456 g of water at 25.0°c to change it into ice at?
    5·1 answer
  • How does this evidence indicate that the reaction has occurred between ions?
    9·1 answer
  • Argon gas has a boiling point of -197 °C. Which of the following diagrams best represents the
    15·1 answer
  • Calculate Delta G for each reaction using Delta Gf values: answer kJ ...thank you
    15·1 answer
  • Question 2(Multiple Choice Worth 4 points) (01.01 MC) Dominic and Eva are using the same type of stopwatches to measure the time
    9·2 answers
  • The fictional character of sherlock holmes was created by
    14·1 answer
  • The best thermometer to use where temperatures drop below -39°C (-38.2°F) is:_______.
    8·1 answer
  • Please helpppppppppp
    12·2 answers
  • You finally earn your drivers license and are extremely excited to start driving! It is the middle of winter and all 4 tires on
    15·1 answer
  • What can form along faults when pushed together or pulled apart?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!