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
Klio2033 [76]
3 years ago
15

n a simplified and example version of the solar system model (developed by Neils Bohr, a Danish chemist), an electron in an orbi

t of an atom has an energy of -50.3 J. If the atom absorbs a photon and the electron moves up to an orbit with the energy -18.5 J, what is the the energy of the photon of light that was absorbed?
Chemistry
1 answer:
LekaFEV [45]3 years ago
7 0

Answer:

31.8 Joules is the the energy of the photon of light that was absorbed.

Explanation:

Initially the electron is present at energy level equal to -50.3 Joules and on absorbing an energy it jumps to energy level which has energy of -18.5 Joules.

E_1=-50.3 J (Initial)

E_2=-18.5 J (Final)

\Delta E=E_2-E1

\Delta E = -18.5 J - (-50.3 J) = 31.8 J

ΔE , here is also the energy of the photon absorbed by an electron before transition.

31.8 Joules is the the energy of the photon of light that was absorbed.

You might be interested in
Which of these statements about the Sun is accurate?
Ymorist [56]

C.

The energy produced by the Sun comes from nuclear fusion reactions.

Explanation

during formation of the solar system the centrifugal force of the sun caused it to collapse on it's self initialising nuclear fusion.

8 0
3 years ago
Read 2 more answers
What physical effect can change the boiling point of a substance?
AleksandrR [38]
The correct answer for the following questions that are presented above are these ones:
(1) b. Pressure. The <span>physical effect can change the boiling point of a substance is the pressure.
(2) </span><span>Evaporation only occurs at the surface of a liquid. TRUE.</span><span>
(3) </span>d. freezing. The change from liquid to solid, or the reverse of melting, is called freezing.
5 0
4 years ago
Read 2 more answers
What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron?
vazorg [7]

Answer:

<em>What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron </em>is<u><em> energy</em></u><em>.</em>

Explanation:

The normal state of the atoms, where all the electrons are occupying the lowest possible energy level, is called ground state.

The <em>valence electrons</em> are the electrons that occupy the outermost shell, this is the electrons in the highest main energy level (principal quantum number) of the atom.

So, a <em>nonvalence electron</em> occupies an orbital with less energy than what a valence electron does; in consequence, in order to a nonvalence electron jump from its lower energy level to the higher energy level of a valence electron, the former has to absorb (gain) energy.

This new state is called excited state and is temporary: the electron promoted to the higher energy level will emit the excess energy, in the form of light (photons), to come back to the lower energy level and so the atom return to the ground state.

6 0
4 years ago
Read 2 more answers
To the diagram, what rock groups can form metamorphic rock?
Advocard [28]

Answer: C is the correct answer

Explanation:

7 0
3 years ago
If you burn 55.6 g of hydrogen and produce 497 g of water, how much oxygen reacted?
tester [92]

Answer:

441.28 g Oxygen

Explanation:

  • The combustion of hydrogen gives water as the product.
  • The equation for the reaction is;

2H₂(g) + O₂(g) → 2H₂O(l)

Mass of hydrogen = 55.6 g

Number of moles of hydrogen

Moles = Mass/Molar mass

          = 55.6 g ÷ 2.016 g/mol

          = 27.8 moles

The mole ratio of Hydrogen to Oxygen is 2:1

Therefore;

Number of moles of oxygen = 27.5794 moles ÷ 2

                                               = 13.790 moles

Mass of oxygen gas will therefore be;

Mass = Number of moles × Molar mass

Molar mass of oxygen gas is 32 g/mol

Mass = 13.790 moles × 32 g/mol

<h3>          = 441.28 g</h3><h3>Alternatively:</h3>

Mass of hydrogen + mass of oxygen = Mass of water

Therefore;

Mass of oxygen = Mass of water - mass of hydrogen

                          = 497 g - 55.6 g

<h3>                           = 441.4 g </h3>
6 0
4 years ago
Read 2 more answers
Other questions:
  • Which of these is an example of a physical change? a banana ripening in the air hydrogen burning in the air zinc reacting with a
    10·2 answers
  • Calculate the standard cell potential given the following standard reduction potentials: Al3++3e−→Al;E∘=−1.66 V Cu2++2e−→Cu;E∘=0
    5·1 answer
  • What type of elements are found in the polyatomic ions?
    12·1 answer
  • 2al(s)+3cl2(g)→2alcl3(s) δh∘ = -1408.4 kj. how much heat (in kilojoules) is released on reaction of 4.70 g of al?
    14·1 answer
  • FeCl3 + NaOH → Fe(OH)3 + NaCl​
    6·1 answer
  • What is the frequency of a wave with a wavelength of 6.40 x 104 meters?? 
    8·2 answers
  • AB G C F G Y OBLAD
    6·1 answer
  • Kalia spent a quarter of her weekly allowance on a movie. The movie was $4.75. What is her weekly allowance?
    9·1 answer
  • Finding mole ratios from chemical formulae
    12·1 answer
  • How many different kinds of atoms are present in the mixture
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!