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
Aloiza [94]
3 years ago
14

When a hydrogen atom makes the transition from the second excited state to the ground state (at -13.6 eV) the energy of the phot

on emitted is:
Chemistry
1 answer:
viktelen [127]3 years ago
3 0

Answer : The energy of the photon emitted is, -12.1 eV

Explanation :

First we have to calculate the 'n^{th}' orbit of hydrogen atom.

Formula used :

E_n=-13.6\times \frac{Z^2}{n^2}ev

where,

E_n = energy of n^{th} orbit

n = number of orbit

Z = atomic number  of hydrogen atom = 1

Energy of n = 1 in an hydrogen atom:

E_1=-13.6\times \frac{1^2}{1^2}eV=-13.6eV

Energy of n = 2 in an hydrogen atom:

E_3=-13.6\times \frac{1^2}{3^2}eV=-1.51eV

Energy change transition from n = 1 to n = 3 occurs.

Let energy change be E.

E=E_-E_3=(-13.6eV)-(-1.51eV)=-12.1eV

The negative sign indicates that energy of the photon emitted.

Thus, the energy of the photon emitted is, -12.1 eV

You might be interested in
Calculate the work done when a force of 500N moves an object 20m. and (B) if it
strojnjashka [21]

Answer:

work done = force multiplied by distance covered,which is 500n multiplied by 20 m= 10000nm

power= work done/time

p= 10000/10

p=1000

4 0
3 years ago
Rain that containing excess of acid is called
Oxana [17]

Answer:

The rain containing excess of acid I called acid rain

4 0
2 years ago
Read 2 more answers
PLEASE PLEASE HELPPP ITS DUE SOON ILL GIVE BRAINLIEST
gayaneshka [121]

Answer:

Explanation:

Using at least three sentences,, explain the four stages involved in genetic engineering/gene cloning.

Stage 1: Isolation of the target gene

Stage 2: Insertation of the target gene

Stage 3: Introduction of the vector into a host

Stage 4: Amplification of the target gene by the host cell and screening

8 0
3 years ago
A student wants to examine a substance by altering the bonds within its molecules. Which of the following properties of the subs
Marrrta [24]

Question is incomplete, the complete question is as follows:

A student wants to examine a substance by altering the bonds within its molecules. Which of the following properties of the substance should the student examine?

A. Toxicity, because it can be observed by altering the state of the substance

B. Boiling point, because it can be observed by altering the state of the substance

C. Toxicity, because it can be observed by replacing the atoms of the substance with new atoms

D. Boiling point, because it can be observed by replacing the atoms of the substance with new atoms

Answer:

B.

Explanation:

A student can examine a substance without altering the bonds within the molecules by examining its boiling point.

The boiling point is the property of a substance, at which the substance changes its state, which is from solid to liquid, liquid to gas and others. So, examining the boiling point will alter the bonds within the molecules as the state of substance will change.

Hence, the correct answer is "B".

6 0
3 years ago
A _____ is a new substance formed in a chemical reaction.
Lorico [155]
B. product
Think about it like this: a company produces products, not coefficients.
5 0
3 years ago
Other questions:
  • If a gas has a volume of 750 mL at 25oC, what would the volume of the gas be at 55oC?
    5·1 answer
  • In a sample of hydrogen sulfide (M = 34.1 g/mol) at a temperature of 3.00 × 102 K, estimate the ratio of the number of molecules
    12·2 answers
  • The first step of the scientific method is To identify this
    7·2 answers
  • I NEED THE ANSWER ASAP, GIVING BRAINLIEST.
    15·2 answers
  • Because of this difference in entropy change, the net entropy change of the entire system is ________ during a real isothermal e
    5·1 answer
  • Helpppp pleaseeeeeee
    14·1 answer
  • 2. If 7.82 mol of nitrogen, N2, are reacted with excess hydrogen, what is the theoretical
    14·2 answers
  • In the modern periodic table, which of the following represents the last pair of elects for which Newlands' Law of Octaves would
    7·1 answer
  • How many moles in 206.91 g Na
    10·1 answer
  • Pick the correct answer!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!