Taking into account the definition of photon and energy of a photon, the energy per photon is 8.3538×10⁻³⁸ J.
<h3>Energy of a photon</h3>
Electromagnetic radiation carries energy, which can be absorbed or emitted. To explain the processes of emission and absortion, Plank and Einstein proposed that the energy of radiation is composed of indivisible units (quanta). In each elemental process only a quantum of light can be emitted or absorbed. Each of these quanta was called a "photon".
The exchanges of energy between matter and radiation take place not continuously, but by discrete and indivisible quantities or quanta of energy. The quantum of energy is proportional to the frequency of radiation.
The relationship between the amount of energy (E) transported by the photon and its frequency (f) is determined by the following expression:
E=h×f
where:
- E is the energy of a photon.
- h is the Planck's constant h.
- f is the frequency of electromagnetic radiation.
<h3>Energy per photon</h3>
In this case, you know:
- h= 6.63*10⁻³⁴ Js
- f= 1260 kHz= 1,260,000 Hz= 1.26×10⁶ Hz (being 1 kHz=1000 Hz)
Replacing in the definition of energy of a photon:
E= 1.26×10⁶ Hz× 6.63×10⁻³⁴ Js
<u><em>E= 8.3538×10⁻³⁸ J</em></u>
Finally, the energy per photon is 8.3538×10⁻³⁸ J.
Learn more about energy of a photon:
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Answer:
The mass of the atom will change
Explanation:
The mass of the atom will alter if the changing the amount of electrons in an atom charge would result in being positively or negatively charged (Correct me if I'm incorrect sorry If I got this wrong)
C. Decomposition
Since one reactant turns (decomposes) into two products, it is a decomposition reaction
Answer: 10 always love yourself
Explanation:
Answer:
12 Neutrons
1 Valence Electron
23 ions [11 Protons and 12 Neutrons]
22 ions [11 Electrons and Protons]
Explanation:
To find the number of neutrons in an element, you simply take its atomic number and deduct that from the atomic mass [<em>round</em><em> </em>if necessary]. There is one <em>valence </em><em>electron</em><em> </em>because<em> </em>according to the Periodic Table of Elements, the first three energy levels can fit 2 - 8 electrons:
1st Energy Level → 2 Electrons
2nd Energy Level → 8 Electrons
3rd Energy Level → 8 Electrons
4th Energy Level → 18 Electrons
5th Energy Level → 18 Electrons
6th Energy Level [Lanthanide Series] → 32 Electrons
7th Energy Level [Actinide Series] → 32 Electrons
So, as you can see, 2 + 8 gives you 10. So from there, we already filled up 2 energy levels. Now going to the third one will leave us with only one electron left over. That is where that valence electron is.
** I encourage you to write this down in your Chemistry notebook somewhere, so you can keep this stored in your memory at all times. There are some pointers in the answer as well. Copy that.
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