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
exis [7]
3 years ago
14

NEED HELP FAST !! Does anyone know what element this is ??

Chemistry
1 answer:
bonufazy [111]3 years ago
5 0

Answer:

Carbon

Carbon atoms have 6 protons.

You might be interested in
Rank the following measurements in order from least to greatest
Harman [31]
It’s
1.A
2.C
3.B

hope it’s correct
4 0
3 years ago
I need help on this asap
dlinn [17]
1.hydrogen
2.carbon
3.argon
4.titanium
5.cesium
6 0
3 years ago
Read 2 more answers
Which of the following environmental risks is most likely to lead to digestive health issues?
xz_007 [3.2K]
You haven’t listed answer choices for this question
5 0
3 years ago
Read 2 more answers
A laser produces 17.0 mW of light. In 4.00 hr , the laser emits 6.04×1020 photons. What is the wavelength of the laser?
Vlad [161]
The unit 'mW' means milliwatts. It is a unit of work. There are 1,000 milliwatts in a 1 Watt of work. In 4 hours, there are 14,400 seconds.

Work= Energy/time
17 mW * 1 W/1000 mW = Energy/(14,400 seconds)
Solving for energy,
Energy = 244.8 J
Energy/photon = 244.8 J/(6.04×10²⁰) = 4.053×10⁻¹⁹ J/photon

Using the Planck's equation:

E = hc/λ
where h = 6.626×10⁻³⁴ m²·kg/s, c = 3,00,000,000 m/s and λ is the wavelength

4.053×10⁻¹⁹ J/photon = (6.626×10⁻³⁴ m²·kg/s)(3,00,000,000 m/s)/λ
λ = 4.9×10⁻⁷ m or 49 micrometers


5 0
3 years ago
Read 2 more answers
Descuss how to find the oldest paper in a stack of papers
deff fn [24]
It is by looking on the dates of the paper.

Hoped this helped.

~Bob Ross®
8 0
3 years ago
Read 2 more answers
Other questions:
  • What type of crust is bigger Continental or Oceanic
    8·2 answers
  • A 7.85 × 10-5 mol sample of copper-61 emits 1.47 × 1019 positrons in 90.0 minutes. what is the decay constant for copper-61
    12·1 answer
  • An iceberg has a volume of 8925 ft3. is the mass in kilograms of the iceberg?
    6·1 answer
  • Which of the following statements is a part of John Dalton’s atomic theory?
    6·1 answer
  • From the figure of the electrochemical cell, what is producing the current in the wire connecting the electrodes?
    6·2 answers
  • After use, non-biodegradable plastics last for many years in __________ sites. Many also pollute the ocean.
    12·1 answer
  • Ayudaaaaaaaaaaaaaaaaa​
    5·1 answer
  • A. What is a period on the periodic table?
    5·2 answers
  • Which electron requires the most ionization energy - the 1st, 2nd or 3rd electron on a sodium atom? Support your answer using at
    12·1 answer
  • Two students conduct the same experiment, but they get different results. What should the students do next?A.The students should
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!