12) what the heck is light?
1) where are electrons found in an atom?

2) what happens to an electron if it is given energy?

3) how is light formed?

4) the relationship between distance fallen by the electron and the energy of the light particle (photon) emitted is
a) direct b) indirect c) none
5) the relationship between the energy of a photon and its wavelength is
a) direct b) indirect c) none
6) the relationship between the wavelength of a photon and its frequency is
a) direct b) indirect c) none
7) what is the charge and mass of a photon?

8) what are the colors of light that we can see with our eyes?

9) what kinds of light have less energy than our eyes are capable of detecting?

, and

10) what kinds of light have more energy than our eyes are capable of detecting?

, and

11) when elements are given energy, what characteristic thing do they produce?

12) why can this thing be used to identify what element you have?

Question

12) what the heck is light?
1) where are electrons found in an atom?

2) what happens to an electron if it is given energy?

3) how is light formed?

4) the relationship between distance fallen by the electron and the energy of the light particle (photon) emitted is
a) direct			b) indirect			c) none
5) the relationship between the energy of a photon and its wavelength is
a) direct			b) indirect			c) none
6) the relationship between the wavelength of a photon and its frequency is
a) direct			b) indirect			c) none
7) what is the charge and mass of a photon?

8) what are the colors of light that we can see with our eyes?

9)  what kinds of light have less energy than our eyes are capable of detecting?

, 					and

10) what kinds of light have more energy than our eyes are capable of detecting?

, 					and

11) when elements are given energy, what characteristic thing do they produce?

12) why can this thing be used to identify what element you have?

Accepted Answer

### Question 1: Where are electrons found in an atom?
# Brief Explanations:
Electrons in an atom are found in regions called electron shells (or energy levels) surrounding the atomic nucleus. These shells are specific regions where electrons move, and they are organized in layers (like K, L, M, N shells) at different distances from the nucleus.
# Answer:
Electrons are found in electron shells (energy levels) surrounding the atomic nucleus.

### Question 2: What happens to an electron if it is given energy?
# Brief Explanations:
When an electron gains energy (e.g., from heat, light, or electrical energy), it moves from a lower - energy electron shell (closer to the nucleus) to a higher - energy electron shell (farther from the nucleus). This process is called excitation.
# Answer:
The electron moves from a lower - energy shell to a higher - energy shell (it gets excited).

### Question 3: How is light formed?
# Brief Explanations:
Light is formed when an excited electron in an atom (which has moved to a higher - energy shell) returns to a lower - energy shell. As the electron transitions down, it releases the excess energy it had gained in the form of a photon (a particle of light). The energy of the photon corresponds to the energy difference between the two electron shells.
# Answer:
Light is formed when an excited electron in an atom falls from a higher - energy shell to a lower - energy shell, releasing energy as a photon.

### Question 4: The relationship between distance fallen by the electron and the energy of the light particle (photon) emitted is
# Brief Explanations:
The energy of a photon ($E$) emitted when an electron falls is given by the difference in energy between the two shells, $E = hf=\frac{hc}{\lambda}$, where $h$ is Planck's constant, $f$ is frequency, $c$ is the speed of light, and $\lambda$ is wavelength. The greater the distance (energy difference) the electron falls (from a much higher shell to a much lower shell), the greater the energy of the emitted photon. So the relationship is direct.
# Answer:
a) Direct

### Question 5: The relationship between the energy of a photon and its wavelength is
# Brief Explanations:
The energy of a photon is given by the formula $E=\frac{hc}{\lambda}$, where $h$ (Planck's constant) and $c$ (speed of light) are constants. As the wavelength ($\lambda$) of a photon increases, the energy ($E$) of the photon decreases, and vice - versa. So the relationship is indirect.
# Answer:
b) Indirect

### Question 6: The relationship between the wavelength of a photon and its frequency is
# Brief Explanations:
The speed of light $c$ is related to the wavelength ($\lambda$) and frequency ($f$) of a photon by the formula $c = \lambda f$. Since $c$ is a constant, if the wavelength ($\lambda$) of a photon increases, the frequency ($f$) decreases, and if the wavelength decreases, the frequency increases. So the relationship is indirect.
# Answer:
b) Indirect

### Question 7: What is the charge and mass of a photon?
# Brief Explanations:
A photon is a massless particle and it also has no electric charge. This is a fundamental property of photons, which are the quanta of electromagnetic radiation (light).
# Answer:
A photon has a charge of 0 and a mass of 0.

### Question 8: What are the colors of light that we can see with our eyes?
# Brief Explanations:
The visible spectrum of light (the light we can see with our eyes) consists of the colors red, orange, yellow, green, blue, indigo, and violet (ROYGBIV). These colors correspond to different wavelengths of light within the range of approximately 400 - 700 nanometers.
# Answer:
Red, orange, yellow, green, blue, indigo, violet (ROYGBIV)

### Question 9: What kinds of light have less energy than our eyes are capable of detecting?
# Brief Explanations:
Light with less energy than visible light has longer wavelengths. Radio waves and microwaves (and also infrared light, although infrared is close to visible light in energy) have less energy than visible light. Radio waves have the longest wavelengths (and least energy) among the electromagnetic spectrum, followed by microwaves, and then infrared (which is just below visible light in energy).
# Answer:
Radio waves, microwaves, infrared (light)

### Question 10: What kinds of light have more energy than our eyes are capable of detecting?
# Brief Explanations:
Light with more energy than visible light has shorter wavelengths. Ultraviolet (UV) light, X - rays, and gamma rays have more energy than visible light. Ultraviolet light is just above visible light in energy, followed by X - rays, and then gamma rays (which have the shortest wavelengths and highest energy among the electromagnetic spectrum).
# Answer:
Ultraviolet (light), X - rays, gamma rays

### Question 11: When elements are given energy, what characteristic thing do they produce?
# Brief Explanations:
When elements are given energy, their electrons get excited (move to higher - energy shells). When these electrons return to lower - energy shells, the elements emit light (photons). This emitted light has a characteristic spectrum (a unique pattern of wavelengths/colors) for each element, known as an emission spectrum.
# Answer:
They produce a characteristic emission spectrum (light with specific wavelengths/colors).

### Question 12: Why can this thing be used to identify what element you have?
# Brief Explanations:
Each element has a unique electron configuration, which means that the energy differences between its electron shells are unique. When an element emits light (produces an emission spectrum), the wavelengths of the emitted photons correspond to these unique energy differences. So the pattern of wavelengths (the emission spectrum) of the light emitted by an element is unique to that element, just like a "fingerprint". By analyzing the emission spectrum, we can identify the element.
# Answer:
Each element has a unique emission spectrum (due to unique electron shell energy differences), so the spectrum can be used as a "fingerprint" to identify the element.

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QUESTION IMAGE

Question

Explanation:

Question 1: Where are electrons found in an atom?

Answer:

Question 2: What happens to an electron if it is given energy?