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
weqwewe [10]
3 years ago
14

The first ionization energy, e, of a potassium atom is 0.696 aj. what is the wavelength of light, in nm, that is just sufficient

to ionize a potassium atom? values for constants can be found here.
Chemistry
1 answer:
elena55 [62]3 years ago
6 0
The formula to be used for this problem is as follows:

E = hc/λ, where h is the Planck's constant, c is the speed of light and λ is the wavelength. Also 1 aJ = 10⁻¹⁸ J

0.696×10⁻¹⁸ = (6.62607004×10⁻³⁴ m²·kg/s)(3×10⁸ m/s)/λ
Solving for λ,
λ = 2.656×10⁻⁷ m or <em>0.022656 nm</em>
You might be interested in
What is the cell membrane mostly made of
dexar [7]

Answer:

Lipids and protein.

Explanation:

The cell membrane is mostly made up of lipids and protein. It is made up of other things, but it is mostly made up of those.


I hope it helps! Have a great day!
bren~

7 0
2 years ago
Read 2 more answers
Which statement below can NOT
alexandr402 [8]

Answer:

the answer is B:

Explanation:

I hope it help.

6 0
3 years ago
What is the VSEPR model of CB4I?
sesenic [268]

Answer:

Molecular geometry Vsepr

According to VSEPR, the valence electron pairs surrounding an atom mutually repel each other; they adopt an arrangement that minimizes this repulsion, thus determining the molecular geometry. This means that the bonding (and non-bonding) electrons will repel each other as far away as geometrically possible.

Explanation:

3 0
3 years ago
If i increase the [h+] of a solution by 10x, how much will the ph change? and in what direction will ph change?
igomit [66]
For example...
You have solution with [H+] = 0,01M
>>>> pH = -log[H+] = -log0,01 = 2

And you increase the [H+] by 10x ---> 0,01×10 = 0,1M
>>>> pH = -log0,1 = 1

○ pH decrease by 2x
○ pH is more acidic
4 0
3 years ago
Tetrachloromethane,CC15,is classified as a
prohojiy [21]
Correct Answer: compound because the atoms of the elements are combined in a fixed proportion.
7 0
3 years ago
Other questions:
  • A sample of cl2 gas has a volume of 15.0 l at a pressure of 1.50 atm and a temperature of 23 °c. What volume, in liters, will th
    8·2 answers
  • 1. a) Name two examples of good conductors?
    8·1 answer
  • Why would the reliability of results collected for an experiment increase when several groups of students conduct the same exper
    9·1 answer
  • Name the given compound according to the IUPAC nomenclature
    7·2 answers
  • NADH and FADH 2 are important in cellular respiration because they deliver high-energy electrons to the electron transport syste
    12·1 answer
  • Describe the sources of water pollution in hydrological cycle.
    12·1 answer
  • The pressure exerted by a gas container depends on
    13·1 answer
  • What is the chemical name for the compound IFs?<br> Select the correct answer.
    9·1 answer
  • How much energy is required to completely vaporize 250 grams of liquid water that is already at 100 degrees Celsius? Show your w
    12·1 answer
  • Please help as soon as possible!!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!