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Luba_88 [7]
3 years ago
14

How many electrons are in the third energy level? 2 8 18 20

Physics
2 answers:
Alisiya [41]3 years ago
7 0

Answer:

18

Explanation:

plz mark brainlyest

Blababa [14]3 years ago
6 0

Answer:

B)8

Explanation:

In the first energy level you can have, at most, 2. Every energy level after that wants to have 8 electrons. Valence electrons I believe.

Hope this helps, have a nice day! (^-^)

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You would need to type the numbers in the question or you could have added a picture but you didn't so there is no way to answer this question. Have a nice day!

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If she asks you to cut a strip of pie crust long around the outside of the pan, how long does it need to be? (Remember c/d =3.14
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I remember c/d. That's not a problem. But if you want 'c', you'll have to give me 'd'.
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Which sentence best describes a role of gravity in the formation of the
enyata [817]

Answer:

I think it's option D

Explanation:

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8 0
3 years ago
A ray is incident on a film of thickness t and the index of refraction n=1.6 at an angle θ = 35 degrees. Find the angle of refra
lidiya [134]

Answer

Given,

refractive index of film, n = 1.6

refractive index of air, n' = 1

angle of incidence, i = 35°

angle of refraction, r = ?

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n' sin i = n sin r

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Angle of refraction is equal to 21°.

Now,

distance at which refractive angle comes out

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α = 90°-21° = 69°

t be the thickness of the film.

So,

tan \alpha = \dfrac{t}{d/2}

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t = 2.26 mm

Hence, the thickness of the film is equal to 2.26 mm.

4 0
3 years ago
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