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
Likurg_2 [28]
3 years ago
9

Describe how an atom of copper can emit different colors of light. * Your answer

Chemistry
1 answer:
miv72 [106K]3 years ago
3 0

Answer:

Electrons on atoms have different amounts of energy proportional to the distance of their orbital from the nucleus. So in the flame, electrons get excited and pushed to higher energy levels by the heat energy. When they fall back down, they give off photons of light of different colors, based upon how far they fall.

You might be interested in
Which element in the third period would you expect to have the larger atomic radius, sodium (Na) or Sulfur (S)?
jeyben [28]

<u>Answer: </u>The correct answer is Option B.

<u>Explanation:</u>

The given elements that is sodium and sulfur are the elements which belong to the same period that is third period.

As, the electrons are added up to the same shell across a period, the number of protons also increase and hence, they attract the electrons more effectively. This means that the effective nuclear charge also increases and the size of the sulfur thus shrink and hence, the size (atomic radius) of sodium is the largest amongst third period.

Therefore, the correct answer is Option B.

7 0
3 years ago
Read 2 more answers
An electromagnetic wave that has a lower frequency than infrared radiation will have ____ than the infrared radiation. longer wa
Monica [59]
Answer: longer wavelength and lower energy.

Explanation:

1) The wavelength is inversely related to the frequency. So, an electromagnetic wave with lower frequency will have longer wavelength.

This is the formula for electromagnetic waves:

λ = c / ν

where λ is the wavelength, c is the speed of light, and ν is the frequency.

2) Energy is directly related to the frequency.

This is the formula E = hν,

where E is the energy, h is Planck constant, and ν is the frequency.

So, the lower the frequency the lower the energy.

3) Conclusion:
<span>An electromagnetic wave that has a lower frequency than infrared radiation will have longer wavelength and lower energy than the infrared radiation</span>
6 0
3 years ago
Greater than ___________ mcg/dl is considered a high level of morning cortisol.
Natalija [7]

Greater than 23mcg/dl is considered a high level of morning cortisol.

Normally, cortisol levels rise during the early morning hours and are highest about 7AM. They drop very low in the evening and during the early phase of sleep. If you do not have this daily change (diurnal rhythm) in cortisol levels, you may have overactive adrenal glands. This condition is called Cushing's syndrome.

5 0
3 years ago
a 6.7 volume of air, initially at 23 degrees celsius and .98 atm, is compressed to 2.7 L while heated to 125 degrees celsius. Wh
Annette [7]
Data:

V1 = 6.7 liter
T1 = 23° = 23 + 273.15 K = 300.15 K
P1 = 0.98 atm

V2 = 2.7 liter
T2 = 125° = 125 + 273.15 K = 398.15 K
P2 = ?

Formula:

Combined law of ideal gases: P1 V1 / T1 = P2 V2 / T2

=> P2 = P1 V1 T2 / (T1 V2)

P2 = 0.98 atm * 6.7 liter * 398.15 K / (300.15K * 2.7 liter)

P2 = 3.22 atm
6 0
3 years ago
What happens to a confined gas at a constant temperature when the volume is reduced to 1/2
Vladimir79 [104]

Answer:

When it reduce then it going be real cold.

Explanation:

3 0
3 years ago
Other questions:
  • How many electron-containing orbitals are in an atom of arsenic? How many of these orbitals are completely filled? How many unpa
    10·1 answer
  • Describe the saponification process
    7·1 answer
  • In the structure shown, each vertices is a carbon atom. for example, the ring has six carbon atoms and the chain has three carbo
    5·2 answers
  • Is plastic a homogenous mixture
    6·2 answers
  • In order for a solute to dissolve in a solvent, what must be true?
    5·2 answers
  • Is hot water added to a bath conduction, convection, or radiation
    5·1 answer
  • A gas that has a volume of 28 Liters, a Temperature of 318 K, and an unknown pressure initially
    7·1 answer
  • 2) __H,PO, +
    9·1 answer
  • If an engineer's greatest concern is specific impulse, which type of fuel should she use?
    9·1 answer
  • Please help me I've been crying for hours trying to figure this out. I don't have any materials to even complete this lab!!! If
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!