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
Balance the equation xcl2(aq)+agno3(aq)=x(no3)2(aq)+agcl(s)
lisabon 2012 [21]

Explanation:

XCl _{2(aq)} + 2AgNO _{3(aq)}→X(NO _{3}) _{2(aq)}   +2 AgCl _{(s)}

6 0
3 years ago
Read 2 more answers
What is the hardest mineral listed here? <br> A. quartz B. calcite C. gypsum D. corundum
a_sh-v [17]
The answer would be D. The only minerals harder than corundum is diamond.
3 0
3 years ago
Read 2 more answers
What are the costs and costs<br> of using door mat​
statuscvo [17]

Answer:

$149 depending where you live.

Explanation:

4 0
3 years ago
Explain why we dissected the eggs that didn't hatch. What was the outcome of our dissection? PLEASE HELP DUE TONIGHT
stiks02 [169]

Answer:

It helps us develop our obervation skills and we learn what the egg looks like. We can learn the nutritional values of the egg.

Explanation:

Hope that helped

5 0
2 years ago
Sodium has an atomic number of 11 and has a net charge of 0. When sodium combines with chlorine, it has a net charge of +1. Why?
Mamont248 [21]

Answer: Option (A) is the correct answer.

Explanation:

Atomic number of sodium is 11 and its electronic configuration is 1s^{2}2s^{2}2p^{6}3s^{1}.

In order to gain stability, sodium loses one electron and hence it forms a positive ion (Na^{+}).

Thus, we can conclude that when sodium combines with chlorine, it has a net charge of +1 because sodium loses a negative electron when forming chemical bonds.

5 0
3 years ago
Read 2 more answers
Other questions:
  • HELP ASAP!!!!!!
    12·2 answers
  • Liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 8.00 g of octane is m
    13·1 answer
  • Who were the Native Americans ?
    15·2 answers
  • What is the correct term for blocked sunlight and reduced solar radiation as a result of a volcanic eruption?
    12·1 answer
  • Metals react with ______ to form compounds that are alkaline.
    10·2 answers
  • Animals can change the energy in food into energy the animals can use. What type of energy is in the food before the animals cha
    5·1 answer
  • How is atmospheric pressure created​
    12·2 answers
  • Gallium is produced by the electrolysis of a solution made by dissolving gallium oxide in concentrated NaOH(aq). Calculate the a
    6·1 answer
  • Kingdom:
    15·1 answer
  • 2) The pH of 1x10-1M (HNO3) solution is:<br><br> A)1<br> B) 1.3<br> C)5<br> D)2
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!