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
Natalija [7]
3 years ago
5

Calculate the wavelength (in nanometers) of a photon emitted by a hydrogen atom when its electron drops from the n = 5 to n = 3

state
Chemistry
1 answer:
tankabanditka [31]3 years ago
5 0
<span>ΔE = -RH [(1/nf2) - (1/ni2)]ΔE = -2.18 x10-18 J [(1/32) - (1/52)]ΔE = -1.55 x10-19 JE = hc/λλ = hc/Eλ = [(6.63 x10-34 J.s.) x (3.00 x1017 nm/s)] /(1.55 x10-19 J)λ = 1280nm</span>
You might be interested in
Why don’t Hydrogen atoms need to form octets? What is this called instead of an octet?
ankoles [38]

im going to guess bytes, or octaves idk which one but those are all i know, i hope you have a good day and hope i helped.

7 0
2 years ago
A - ion (negative ion, one with extra negative charge)?
bekas [8.4K]

Answer:

That means an atom with a neutral charge is one where the number of electrons is equal to the atomic number. Ions are atoms with extra electrons or missing electrons. When you are missing an electron or two, you have a positive charge. When you have an extra electron or two, you have a negative charge.

5 0
3 years ago
I need help with these 4
storchak [24]

Rift Valley Examples

  • East African
  • Rhine Rift Valley (Germany)
  • Baikal Rift Valley (Russia)

Rift Valley Facts/Characteristics

  • Bordered by fault zones and separating land masses
  • A portion of land that drops, forming a valley.
  • Formed as tectonic plates move.

Fossils - Examples

  • Bones
  • Shells
  • Exoskeletons
  • Stone imprints of animals.

Non Examples of Fossils

  • Stones
  • rocks
  • Some bones (If they are fossils they will be a lot heavier than other bones.

Hope this helps.

5 0
3 years ago
NaOH is typically standardized using potassium hydrogen phthalate (KHP).
DaniilM [7]

Answer:

Na(OH)²

Explanation:

We look for the charges in the periodic table

6 0
2 years ago
How many Dalmatian puppies are in Pongo and Perdita’s litter?
enot [183]
 Litter is the<span> birth of multiple offspring at one time. </span>The number of puppies in a litter often varies with the size of the dog, bigger dogs give birth to more puppies than smaller dogs. Pongo and Perdita are the parents in the story of 101<span>Dalmatians. There are 15 puppies in Pongo and Perdita's litter. These dogs are later kidnapped and Pongo and Perdita start searching them.</span>
7 0
2 years ago
Read 2 more answers
Other questions:
  • How long does it take to cook fries
    12·1 answer
  • An object was measured by a worker as 35.6cm long, however, the manufacturer specifications list the length of the object at 35.
    12·1 answer
  • 2.3*10^14 and 5.4*10^-3
    8·1 answer
  • What would be a correct unit of measurement for velocity?
    15·1 answer
  • 2. Does sexual or asexual reproduction produces MORE diversity in offspring?​
    8·1 answer
  • PLZ HELP ME..ITS MY TEST
    12·2 answers
  • The chemical formula for the ionic compound aluminum sulfite is Al2(SO3)3. Explain why there are 2 cations for every 3 anions in
    5·1 answer
  • 5. The tradition of giving teachers an apple goes back to 19th century Denmark, where
    5·1 answer
  • An aqueous solution turns litmus red. The ph of this solution could be
    12·1 answer
  • How many neutrones does the isotope n-14 have
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!