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Maurinko [17]
3 years ago
15

An atom or ion has the abbreviated electron configuration [kr]. Select the species that it could not be

Physics
1 answer:
Lera25 [3.4K]3 years ago
3 0

An atom or ion which does not have the same electronic configuration as the species [kr] is K+

The complete question is given below:

An atom or ion has the abbreviated electron configuration (Kr). Select the species that it could not A. Br" B. K+ C. Sr24 D. Rbt E. Se-

<h3>What is an atom?</h3>

An atom can be defined as the smallest particle of an element which can take part in a chemical reaction.

Some elements are

  • Monoatomic; eg: C
  • Diatomic; eg: O2
  • Triatomic and others
  • Polyatomic

So therefore, an atom or ion which does not have the same electronic configuration as the species [kr] is K+

Learn more about atoms or ions of elements:

brainly.com/question/6258301

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A solid with flat sides that meet at sharp edges and corners is called
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1.) Product is a solid
2.) Product has flat slides
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The product would be a crystal, or it would be a type of product in a crystal structure.
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When the system pressures are lower than the pressure in the refrigerant tank, such as when the system has just been evacuated o
steposvetlana [31]

Answer: True

Explanation:

It should be noted that when refrigerant is added in vapor form to the operating refrigeration system, then the addition of the refrigerant should be to the low-pressure side of the refrigeration system.

Furthermore, when system pressures are lower than the pressure in the refrigerant tank as stated in the question, then the refrigerant can be added to both the high and low pressure sides of the system.

Therefore, the correct option is true.

5 0
3 years ago
Use hubble's law to determine the distance to a galaxy which is moving away at a velocity of 3,500 km/s. (assume that h = 70 km/
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The solution for this problem:
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Two rocks are at the top of a building. Rock 1 is dropped from rest while Rock 2 is thrown horizontaly at a velocity of 5 ms.
Nina [5.8K]
Not sure I’m really sorry
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Suppose a star the size of our Sun, but of mass 9.0 times as great, were rotating at a speed of 1.0 revolution every 17 days. If
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Use the conservation of angular momentum; angular momentum at the beginning = angular momentum at the end 
Conservation of angular momentum: 
I1 w1 = I2 w2 
Where I is the moment of inertia. For a sphere, I=2/5 m R^2. Substituting into the equation above we get 
w2 = I1 w1 / I2 = w1 m1 R1^2 / (m2 R2^2) 
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= 4*(1)*(7E5/7.5)^2
= 3.48E10 revs/(17days)
= 2.04705882 x 10^9 revs/sec
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3 years ago
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