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Higher Chemistry > 4. Metallic bonding and properties > Flashcards

4. Metallic bonding and properties Flashcards

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1
Q

What is the metallic bond?

A

An attraction between positive ions and delocalisedelectrons

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2
Q

Why do metals conduct electricity?

A

The outer electrons are delocalised and are free to move through structure

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3
Q

Why does Magnesium melting point than Sodium

A
  1. Both have metallic bonding
  2. Show understanding of metallic bond
  3. Say why attraction differs in strength
  4. Link attraction strength to energy needed to break it
  5. Link energy required to melting point
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4
Q

Why does Potassium have a lower melting point than Sodium

(decreases going down group 1)

A
  1. Both have metallic bonding
  2. Show understanding of metallic bond
  3. Say why attraction differs in strength
  4. Link attraction strength to energy needed to break it
  5. Link energy required to melting point
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Higher Chemistry (24 decks)

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