Electron Shell Capacities

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Questions and Answers

What contributes to the electrical properties of a material, including its ability to conduct electrical current?

  • Protons
  • Neutrons
  • The nucleus
  • Electron shells (correct)

Which atomic particle is positively charged?

  • Electrons
  • Neutrons
  • Protons (correct)
  • Valence shell

What type of material is known as a conductor?

  • Material that doesn't conduct electricity
  • Material with negatively charged electrons
  • Material with predominantly neutrons
  • Material that easily conducts electricity (correct)

What determines a material's conductivity?

<p>Willingness to share electrons (D)</p> Signup and view all the answers

Which part of an atom contains both protons and neutrons?

<p>Nucleus (C)</p> Signup and view all the answers

What is the name of copper with two additional positive charges?

<p>Cupric ion (D)</p> Signup and view all the answers

What is the characteristic of noble gases under normal conditions?

<p>They contain the maximum number of valence electrons. (B)</p> Signup and view all the answers

What practical application uses ionisation and neon gas to produce light?

<p>Neon lighting (A)</p> Signup and view all the answers

Which type of bond joins metals to nonmetals in a molecule?

<p>Ionic bond (B)</p> Signup and view all the answers

What does a molecule consist of?

<p>Two or more atoms bonded together (A)</p> Signup and view all the answers

What is the maximum number of electrons the third electron shell can hold?

<p>18 (B)</p> Signup and view all the answers

In an atom, which shell forms the valence band?

<p>Fourth shell (A)</p> Signup and view all the answers

What determines whether or not an atom's electrons will flow easily?

<p>Valence shell (D)</p> Signup and view all the answers

What is the net charge of a balanced atom?

<p>0 (D)</p> Signup and view all the answers

In aviation, which aspect of electron theory is focused on for conduction and current flow?

<p>Atomic valence shell (D)</p> Signup and view all the answers

What subatomic particles make atoms differ from one another?

<p>Protons, electrons, and neutrons (D)</p> Signup and view all the answers

What is the role of the valence band in an atom?

<p>It contains the valence electrons and forms the conduction band (A)</p> Signup and view all the answers

What is the function of the conduction band in an atom?

<p>It allows a valence electron to become a free electron and conduct electricity (B)</p> Signup and view all the answers

What is the difference in energy called between the valence band and the conduction band?

<p>Energy gap (C)</p> Signup and view all the answers

What is the main factor that determines whether an atom is in a balanced state?

<p>The number of protons and electrons are equal (B)</p> Signup and view all the answers

What is the electrical nature of conductors?

<p>They have a loosely bound outer electron shell and are good conductors of electricity (B)</p> Signup and view all the answers

What defines the molecular structure and nature of insulators?

<p>Tightly bound outer electron shell, restricting movement of electrons (D)</p> Signup and view all the answers

What is the electrical nature of molecules?

<p>They have a tightly bound outer electron shell, making them poor conductors (D)</p> Signup and view all the answers

What does the symbol 'R' represent in the context of electrical fundamentals?

<p>Resistance (C)</p> Signup and view all the answers

What factors control the resistance of an object?

<p>Material, length, and temperature (A)</p> Signup and view all the answers

What is the relationship described by Ohm's law?

<p>V = IR (A)</p> Signup and view all the answers

What is the unit for the measurement of a material's ability to conduct current?

<p>Siemens (A)</p> Signup and view all the answers

What is the reciprocal of resistance?

<p>Conductance (C)</p> Signup and view all the answers

Which type of material can range between both a conductor and an insulator?

<p>Semiconductor (A)</p> Signup and view all the answers

How many electron shells can some atoms have?

<p>Seven (D)</p> Signup and view all the answers

Where are the electrons with the least amount of energy located?

<p>Closest to the nucleus (B)</p> Signup and view all the answers

What is the outermost shell of an atom known as?

<p>Valence shell (C)</p> Signup and view all the answers

How are the electrons in the outermost shell held by the nucleus?

<p>Weakly (C)</p> Signup and view all the answers

Which electron shell possesses electrons with the greatest amount of energy?

<p>&quot;N&quot; shell (C)</p> Signup and view all the answers

What do we call the electrons that are further away from the nucleus?

<p>&quot;Loosely bound&quot; electrons (C)</p> Signup and view all the answers

How many letters represent the first four electron shells?

<p>&quot;K&quot;, &quot;L&quot;, &quot;M&quot;, &quot;N&quot; (C)</p> Signup and view all the answers

Which term is commonly used interchangeably with 'electron shells'?

<p>&quot;Energy levels&quot; (A)</p> Signup and view all the answers

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