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madreJ [45]
3 years ago
12

An electron jumps from energy level 1 to energy level 2 by absorbing a photon of energy 8 eV. What is the most likely energy of

the photon that will be emitted by the electron when it moves back down to energy level 1?
A. 2 eV
B. 4 eV
C. 8 eV
D. 12 eV
Chemistry
1 answer:
Mkey [24]3 years ago
5 0

Answer:

C. 8 eV

Explanation:

In atoms, the energy of each level is quantised. That is one of the reasons why an electron can not exist between energy levels. Thus, when the electron absorbs energy of 8 ev, it get excited and jumps to energy level 2 which has the current value of energy of the electron.

Thus for the electron to move back to its initial energy level, it must emit the exact energy absorbed for its excitation. Therefore, the likely energy of the photon that will be emitted is 8 ev. This would make the electron to have energy that would make it to exist on energy level 1.

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Answer:

See explanation

Explanation:

Many organic compounds have low melting points. This is due to the fact that many of these compounds are non polar.

However, compound X is slightly polar but still has a melting point which is far less than that of sand composed of a high melting point inorganic material.

Since sand has a much higher melting point compared to compound X, the researcher need not be worried that sand was spilled into his beaker.

7 0
2 years ago
1. When the temperature of a rigid hollow sphere containing 685 L of helium gas is
mote1985 [20]
<h3>Answer:</h3>

250.756 moles He

<h3>Explanation:</h3>

From the question we are given;

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Using the Ideal gas equation,

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n = 250.7557 moles

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6 0
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vladimir1956 [14]

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navik [9.2K]

Answer:

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3 years ago
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