PHYSICS HIGH SCHOOL

What can you assume has happened if an electron moves to a higher energy level

Answers

Answer 1
Answer:

EXPLANATION :

As per the question, the electron has jumped from ground state to higher energy level.

From Bohr's postulate, we know that electron can only move to higher excited state when the energy equivalent to excitation energy has been given to it. Otherwise, the electron can not move from ground state to the excited state.

Hence, it is obvious that the electron might have excited to higher energy level by providing sufficient energy from outside.

The external source might be light of suitable frequency or  any electric or thermal source.

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What is cell function

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Answer:

Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.

Explanation:

The shifting of the observed wavelength of light due to the motion of the source toward or away from the observer is called the _____________.

Answers

Answer:

doppler effect

Explanation:

When the relative motion of two bodies results in the wavelength becoming shorter this means that the bodies are getting closer. This is known as blue shift.

When the relative motion of two bodies results in the wavelength becoming longer this means that the bodies are getting farther. This is known as red shift.

Collectively this phenomenon is known as the Doppler effect.

Qualitative methods that encourage participants to reveal hidden or suppressed attitudes, ideas, emotions, and motives are called _____ techniques.

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various techniques I believe

Prove that an electron cannot exist in the nucleus

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We can say this is proved because electrons are having negative charges. If they lie inside the nucleus, they will be neutralised by the positive charges. Thus, the atom will have no charged particle and unstable. But an atom has both positive and negative charges.

Which element is classified as an alkali metal?

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according to the periodic table, all the elements, except hydrogen, are considered alkaline metals. ie. Li, Na, K, Rb, Cs, Fr.

Answer:

Rb

Explanation:

took the test

When two or more forces act together on an object what do they combine to form

Answers

Without knowing anything about their magnitudes or directions, the only thing you can always say about thier combination is that it's the "net force" on the object.
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