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2 years ago

4) An electron in a mercury atom changes from

Physics

1 answer:

Ira Lisetskai [31]2 years ago

6 0

The energy-level change occurs as the atom is absorbs a 2.03-eV photon.

<h3>Energy change of the mercury atom</h3>

The energy change of the mercury atom is calculated as follows;

Energy emitted by a photon when it falls from level b to energy level e is calculated as follows;

ΔE = -3.71 eV - (-5.74 eV)

ΔE = -3.71 eV + 5.74 eV

ΔE = 2.03 eV

When electron jumps from lower energy level to higher energy level, energy is absorbed, thus, the energy-level change occurs as the atom is absorbs a 2.03-eV photon.

Learn more about energy level here: brainly.com/question/14287666

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Helga [31]

Answer:

Electrical force, F = 90 N

Explanation:

It is given that,

Charge on sphere 1, $q_1=9\ \mu C=9\times 10^{-6}\ C$

Charge on sphere 2, $q_1=4\ \mu C=4\times 10^{-6}\ C$

Distance between two spheres, d = 6 cm = 0.06 m

Let F is the electrical force between them. It is given by the formula of electric force which is directly proportional to the product of charges and inversely proportional to the square of distance between them such that,

$F=k\dfrac{q_1q_2}{d^2}$

$F=9\times 10^9\times \dfrac{9\times 10^{-6}\times 4\times 10^{-6}}{(0.06)^2}$

F = 90 N

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3 years ago

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Marta_Voda [28]

Answer:

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Explanation:

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2 years ago

Martina has a sample of an unknown substance. She measures the substance. It’s mass is 13.5 grams, and it’s volume is 5 cm3 .Whi

Dominik [7]

Cm^3 is same as mL

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3 years ago

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gayaneshka [121]

Answer:

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3 years ago

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Answer:

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Explanation:

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3 years ago