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Rasek [7]
3 years ago
6

Which one of the following statements BEST explains what is meant by the “dual nature” of the electron? A : An electron may be e

ither in a quasi-free state as in a metal or in a tightly-bound state deep within an atom. B : An electron plays a role in the production of both magnetic and electric fields. C : An electron can be transmitted in a beam as in a television or through a wire. D : An electron may act with either particle-like or wave-like characteristics. E : An electron can travel at very small velocities or be at rest. It’s motion adequately described by Newton’s laws of motion. The electron can also travel at speeds close to the speed of light; and its motion is described by relativistic laws of motion.
Chemistry
2 answers:
erica [24]3 years ago
8 0
D. An electron may acr with either particle like or wave like
kykrilka [37]3 years ago
7 0

Answer:

D : An electron may act with either particle-like or wave-like characteristics.  

Explanation:

This is the whole basis of the Schrödinger equation.

The other options are correct, but they do not state the dual nature of the electron.

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A student has a cube with each side is 4 cm in length, what is the volume? What is the measurement unit? Select ALL that apply.
Margaret [11]

Answer:

64cm^3

Explanation:

To get the volume just multiple 4*4*4

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6 0
2 years ago
Which activity is a function of the circulatory system?
Marta_Voda [28]

Answer:

A. move materials through the body

Explanation:

The blood circulatory system (cardiovascular system) transports materials and delivers nutrients and oxygen to all cells in the body.

8 0
3 years ago
Draw and label the structure of a sodium atom showing the distribution of electrons​
Korolek [52]

Answer:

  • Please, find the drawing in the picture attached.

Explanation:

A simple model or drawing of the structure of an atom may be performed showing the electrons on the different energy levels (shells), plus the nucleons (protons and neutrons).

Then, you need the information on:

  • number of protons (atomic number)
  • electron configuration
  • number of neutrons

The first step is  to find the atomic number of the atom. You find that information in the periodic table, where the elements are show with their chemical symbol.

The chemical symbol of sodium is Na. It is located in the group (colum) 1 and period (raw) 3. There you find that the atomic number is 11. Hence your drawing must show 11 protons.

Since the atom is neutral, the number of electrons is also 11. So, you must place the electrons in the following energy levels or shells:

Main energy level      shell   number of electrons

n = 1                              K         2 (this is the maximum in this level)

n= 2                              L          8 (this is the maximun in this level)

n= 3                              M         1 (the maximum in this level is 18)

Now that you have the number of protons and the location of the electrons, you must determine the number of neutrons.

In the periodict table you will also find the atomic mass of the elements. The atomic mass of sodium is 22.990 amu. That means that most sodium atoms have mass number (number of protons plus neutrons) 23. Some isotopes will have less neutrons, but you can draw your model using the most typical isotope with 23 nucleons. This means, that the number of neutrons is 23 nucleons - 11 protons = 12 neutrons.

8 0
3 years ago
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