What is the energy of a photon with wavelength of 670.8?

1 answer:

8 0

The velocity of a wave is calculated by v = λf. From this equation we can take the frequency f = v / λ and substitute in the energy equation to find a new equation for the calculation of the energy from the wavelength: E = hc / λ

To calculate the photon energy, in eV (Electrovolt), when we have the value of the wavelength λ (necessarily given in Å - angstrom), we use an alternative equation given by:
$E = \frac{12400}{\lambda}$

Data: 670.8 Å

Solving:
$E = \frac{12400}{\lambda}$
$E = \frac{12400}{670.8}$
$\boxed{E \approx 18,4eV}$

You might be interested in

Based on patterns in the periodic table, which ion has a stable valence electron configuration?

kifflom [539]

The ions of Noble gases, group VIII elements have a full octet configuration on their outermost shell and as such are highly stable.

The periodic table is a systematic arrangement of elements in order of their atomic numbers into a set of 8 columns each called groups and a set of 7 rows each called a period.

Elements are arranged in different groups according to the number of Valence electrons they have.

For instance, elements in the group I of the periodic table are highly electropositive and as such are highly reactive.

The same is evident in group 7 elements are highly electronegative and have high electron affinity and as such are unstable and reactive.

However, Noble gases, group VIII elements have a full octet configuration on their outermost shell and as such are highly stable.

Consequently, the Noble gases ion has a stable Valence electron configuration.

Read more:

brainly.com/question/5336231

4 0

3 years ago

Why do you think haiti is poor or not

Shalnov [3]

Answer:

It kinda is

Explanation:

The school system isn't very affective on the young adolcent minds, the crime rate is very high (indicating poverty rates) some drug smmuglers are based in Haiti, and half the city is destroyed from either people or the environment.

6 0

2 years ago

Which of the following options correctly ranks solid iodine, liquid bromine, and chlorine gas in order of increasing intermolecu

tatuchka [14]

Answer:

solid iodine chlorine gas

7 0

3 years ago

State the order in which the ions associated with a

Shkiper50 [21]

State the order in which the ions associated with a compound composed of potassium and bromine would be written in the chemical formula and the compound name.

8 0

3 years ago

Ponds and rivers are two types of

NeX [460]

Ponds and rivers are two types of . . . . freshwater ecosystems

5 0

3 years ago

Read 2 more answers