Chemistry Topic Practice
Metallic Bonding and Alloys | GCSE Chemistry Practice
Metals are held together by a "sea" of delocalised electrons.
Why are alloys harder than pure metals?
What is Metallic Bonding and Alloys | Practice?
"The strong attraction between positive metal ions and delocalised electrons."
Question 1
What holds atoms together in a metallic structure?
Question 2
Why can metals be hammered into shapes (malleable)?
Question 3
Metals have high melting points because...
Metallic Structure
Positive metal ions in a sea of delocalised electrons.
Strong electrostatic attraction between ions and electrons.
Alloys distort layers so they cannot slide.
Exam Tip
Properties: Metals are malleable because layers can slide over each other.
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