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Varvara68 [4.7K]
3 years ago
13

Which galaxy is represented in the

Chemistry
1 answer:
harina [27]3 years ago
7 0

Answer:

I need to see the galaxy to answer your question

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Write a nuclear equation for the beta decay of Promethium-165
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Answer:

see your answer in pic

Explanation:

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3 years ago
Choose all of the answers that are correct when describing this atom.
gregori [183]
I believe that this atom is  chlorine and the atom has an overall charge of zero.
Chlorine is chemical element which is atomic number 17 in the periodic table. Each chlorine atom has 17 protons (positively charged) in the nucleus balanced by 17 electrons (negatively charged) in the energy shells ( thus an overall charge of zero) 
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Electrons in atoms exist in particular energy level. A ___ must be emitted or absorbed to move between energy levels.
svetlana [45]

Answer:

Photon of light

Explanation:

According to Bohr's model of the atom, electrons in atoms are found in specific energy levels. These energy levels are called stationary states, an electrons does not radiate energy when it occupies any of these stationary states.

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Since electrons are generally unstable in excited states, the electron quickly jumps back to ground states and emits the excess energy absorbed. The frequency or wavelength of the emitted photon can now be measured and used to characterize the transition. This is the principle behind many spectrometric and spectrophotometric methods.

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3 years ago
What type of stress results when two plates push against one another?
Natasha2012 [34]

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3 years ago
Which of these statements best answers the question: What is art?
Anna11 [10]

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You didn't provide any statements. If it is an option, art is a form of expression. Something created from imagination that expresses the thoughts and emotions of the artist.

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