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
Anvisha [2.4K]
3 years ago
15

Explain, in your own words, why different elements produce different colors of light when heated.

Chemistry
2 answers:
QveST [7]3 years ago
8 0
As the electrons return o lower energy levels they gain energy in the form of light so this means that the colour of the light depends on the difference between two levels
fgiga [73]3 years ago
7 0
Different elements produce different colors of light when heated because the electrons in these elements have different permissible energy levels. When an element is heated, the electrons inside it become excited and move to an higher energy level from the ground state. When the electrons drop from this higher energy level, they typically emit energy quantum, the color of the light that is observed at this stage depends on difference that exist in the two energy levels.<span />
You might be interested in
How many photons are produced in a laser pulse of 0.862 J at 691 nm?
Inga [223]
To calculate how many photons are in a certain amount of energy (joules) we need to know how much energy is in one photon.
Start by using two equations:
Energy of a photon = Frequency * Planck's constant (6.626 * 10^(-34) J-s)
Speed of light (constant 3 * 10^8 m/s) = Frequency * Wavelength
Which means:
frequency = Speed of Light / Wavelength
So energy of a photon = (Speed of light * Planck's constant)/(Wavelength)
You may have seen this equation as E = hc/<span>λ</span>
We have a wavelength of 691 nm or 691 * 10^-9 meters
So we can plug in all of our knowns:
E = (6.626 * 10^(-34) J-s) * (3.00 * 10^8 m/s) / (691 * 10^-9 m) = 
2.88 * 10^(-19) joules per photon
Now we have joules per photon, and the total number of joules (0.862 joules)
,so divide joules by joules per photon, and we have the number of photons:
0.862 J/ (2.88 * 10^(-19) J/photon) = 3.00 * 10^18 photons.

4 0
3 years ago
What is the volume of a sample if the density is 2.35 g/mL and the mass is 33.67 g?
lawyer [7]
  • Density=2.35g/mL
  • Mass=33.67g

\\ \star\sf\longmapsto Density=\dfrac{Mass}{Volume}

\\ \star\sf\longmapsto Volume=\dfrac{Mass}{Density}

\\ \star\sf\longmapsto Volume=\dfrac{33.67}{2.35}

\\ \star\sf\longmapsto Volume=14.32mL

6 0
2 years ago
What is the maximum number of orbitals with: n = 4, L= 1
trapecia [35]

Answer:3

Explanation: I

'm not sure

8 0
3 years ago
Select the correct answer. The wavelength of a given region of the electromagnetic spectrum ranges from 1 x 10-11 - 1 x 10-8 met
Makovka662 [10]

X-rays are found in the given region.

Answer: Option B

<u>Explanation:</u>

The wavelengths of different waves are studied carefully, and their range is determined according to the frequency they exhibited. And based upon the studies, the electromagnetic waves are classified into eight different categories such as gamma, X-, UV, visible, near IR, middle IR, far IR, micro and radio waves.

And each category has different wavelengths and the given radiation falls under X-rays.  The wavelength range of X-rays varies from 1 nm to 1 pm. Here, “nm” stands for nano meter and “pm” stands for “pico meter”.

6 0
3 years ago
Which element is classified as an alkali metal?
Delvig [45]

Answer: The alkali metals consist of the chemical elements lithium (Li), sodium (Na), potassium (K),[note 1] rubidium (Rb), caesium (Cs),[note 2] and francium (Fr).

Explanation:

8 0
3 years ago
Other questions:
  • What is the product when NH3 decomposes
    11·1 answer
  • What is synthesis reation?​
    6·1 answer
  • PLS HELP ASAP!!!!! IM TIMED!!!!!
    11·1 answer
  • Two advantages of using hydrogen to fuel cars
    9·1 answer
  • Commercial cold packs often contain solid NH4NO3 and a pouch of water. The temperature of the pack drops as the NH4NO3 dissolves
    13·1 answer
  • 4. It takes a car one minute to go from rest
    7·1 answer
  • Please i need the answer for 18,19,20<br><br><br>Answer and I will give you brainiliest <br>​
    5·1 answer
  • What volume change occurs to a 400.0 mL gas sample as the temperature increases from 22.0 °C to 30.0°C?
    5·1 answer
  • Balance <br> Na2O+H2O → NaOH
    10·1 answer
  • The neck of a glass funnel is covered with wet filter paper why​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!