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GCSE Chemisty*** > Electrical conductivity > Flashcards

Electrical conductivity Flashcards

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1
Q

What is electrical conductivity

A

The movement of electrons or ions

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2
Q

When do ionic compounds conduct electricity, and why

A

When molten or in solution

  • when solid ions are fixed
  • when they melt or dissolved ions break free and are free to carry charge
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3
Q

When do you covalent compounds conduct electricity, and why

A

Never

  • there are no ions as they share electrons
  • expect graphite as it has free electrons
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4
Q

What are metals held together by

A

Metallic bonding

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5
Q

Describe metallic bonding

A
  • metals have a giant structure of positive ions surrounded by sea of delocalised electrons
  • Attraction between the positive ions and electrons is called metallic bonding
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6
Q

Properties of metals

A
  • good conductors of heat and electricity

- malleable

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GCSE Chemisty*** (39 decks)

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