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High School: 9th and 10th Grade
Chemistry
Bonding - Metallic
Solution
Q.1.
If a potential difference is applied to a metal...
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the fixed electrons will stay in place and no current will pass through the metal
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the negative ions will move through the metal carrying the electrical current
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the delocalised ions will move through the metal carrying the electrical current
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the delocalised electrons will move through the metal carrying the electrical current
Q.2.
What does malleable mean?
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Can be stretched into wires
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Can be bent or hammered into shape
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Is easily shattered
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Is shiny
Q.3.
What type of bonding is present in metals?
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Covalent
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Ionic
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Hydrogen
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Metallic
Q.4.
Metals are malleable because...
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a large amount of energy is required to slide one layer of electrons over another
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little energy is required to slide one layer of electrons over another
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little energy is required to slide one layer of ions over another layer
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a huge amount of energy is required to slide one layer of ions over another layer
Q.5.
Why do metals conduct electricity?
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The positive metal ions are free to move
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The negative electrons are free to move
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All the constituent parts can move through the metal
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The positive protons are free to move
Q.6.
Pick the correct statement about the arrangement of particles in a metal.
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The particles are arranged randomly and far apart
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The particles are arranged regularly and far apart
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The particles are arranged regularly and close together
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The particles are arranged randomly and close together
Q.7.
The bonding in metals is due to a strong attraction between...
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positive metal ions and a sea of negative electrons
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positive metal atoms and a sea of negative electrons
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negative metal atoms and a sea of positive electrons
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negative metal ions and a sea of negative electrons
Q.8.
Superconductors...
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work at any temperature
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conduct heat better than other materials
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have little or no resistance
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conduct an orchestra really well
Q.9.
Metals have...
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low melting points because they have weak bonds
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low melting points because they have strong bonds
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high melting points because they have weak bonds
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high melting points because they have strong bonds
Q.10.
One drawback of superconductors is...
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their behavior is erratic
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they only work at VERY low temperatures
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they could enable super fast transmission of electricity
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they could enable loss free power transmission
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