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lana66690 [7]
3 years ago
11

Why does the quantum mechanical description of many-electron atoms make it difficult to define a precise atomic radius?

Physics
1 answer:
Eddi Din [679]3 years ago
4 0
<span>Atoms and ions, at least within the quantum mechanical model do not have boundaries that are sharply defined at which the electron distribution becomes zero. When this occurs it can be very difficult to measure an atomic radius. The distance between the electrons in quantum mechanics is not set and would be problematic in determining the precise radius.</span>
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A car is traveling at a speed of 45 km/h into town. It takes the car 2 hours to get there. How far has the car traveled?
hjlf

Answer:

90 km

Explanation:

45 km per hr

2 hrs

45 x 2 = 90

90 km/2 hrs

Hope this helps!

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What is the difference between a series circuit and a parallel circuit?
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A motorcycle is following a car that is traveling at constant speed on a straight highway. Initially, the car and the motorcycle
ra1l [238]

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a) t = 4.16 s

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x0 = 52.0 m

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x = v0*t + (a*t²/2)

x = 21.5t + (6*t²/2)

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Car

x = x0 + v0*t

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<em />

then we can apply <em>I = II</em>

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3 years ago
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