Question detail
Explain why most metals have high melting points and high boiling points.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
How bonding and structure are related to the properties of substances
Question
Explain why most metals have high melting points and high boiling points.
Answer
Most metals have high melting points and boiling points due to strong metallic bonding. In metallic bonding, positive metal ions are held together by a sea of delocalised electrons, which creates strong attractions that require a significant amount of energy to overcome.
Explanation
This answer is strong because it directly addresses the question by linking the properties of metals to the nature of metallic bonding. It tests the student's understanding of how bonding influences physical properties.
Common mistake
Properties of metals and alloys correction for Misunderstanding Metall
Students often think that metals have high melting and boiling points due to the size of the metal atoms rather than the strength of metallic bonding This error matters in Properties of metals and alloys because it drifts away from the objective: Explain why most metals have high melting points and high boiling points using strong metallic bonding.
Correct it by naming the exact chemistry idea, using precise bonding or structure vocabulary, and linking the answer back to Properties of metals and alloys. For this objective, students should explain why most metals have high melting points and high boiling points using strong metallic bonding.
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