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Olenka [21]
4 years ago
11

Why is the electron in a Bohr hydrogen atom bound less tightly when it has a quantum number of 3 than when it has a quantum numb

er of 1?
Chemistry
2 answers:
Kobotan [32]4 years ago
5 0

Answer:

Below.

Explanation:

1. At quantum number 3 it is further from the positive protons in the nucleus.

2. The inner electrons have a shielding effect on the attraction from the protons in the nucleus.

Vadim26 [7]4 years ago
3 0

Answer: An electron having a quantum number of one is closer to the nucleus

Explanation:

The Bohr model relies on electrostatic attraction between the nucleus and orbital electron. Hence, the closer an electron is to the nucleus the more closely it is held by the nucleus and the lesser its energy (the more stable the electron is and the more difficult it is to ionize it). The farther an electron is from the nucleus ( in higher shells or energy levels), the less the electrostatic attraction of such electron to the nucleus due to shielding effect. Hence it is less tightly held.

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Answer:

A. Water

Explanation:

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Without water, photosynthesis is unable to properly take place and plants are unable to produce the energy needed for them to continue maintaining life.

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3 years ago
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What is the wavelength of an electromagnetic wave that travels at 3 × 108 m/s and has a frequency of 60 MHz? (1 MHz = 1,000,000
VikaD [51]

Answer: 5m

Explanation:

Given that:

Wavelength (λ)= ?

Frequency of wave (F) = 60MHz

[If 1 MHz = 1,000,000 Hz

60MHz = 60 x 1,000,000 = 6 x 10^7Hz]

Speed of wave (V) = 3 x 10^8 m/s

The wavelength is the distance covered by the wave in one complete cycle. It is measured in metres, and represented by the symbol λ.

So, apply the formula V = F λ

Make λ the subject formula

λ = V/ F

λ = 3 x 10^8 m/s / 6 x 10^7Hz

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3 years ago
What are the products of the reaction: Be(s)+ Cl2(g)⟶
Vikki [24]

Answer:

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Gaseous methane CH4 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. What is the t
Murrr4er [49]

Answer:

50.8 g

Explanation:

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