Differences between the properties of metals and non-metals

3 marks · Normal

Titanium is a metal with a melting point of about 1670°C, and sulfur is a non-metal with a melting point of about 115°C. Calculate the difference in melting points between titanium and sulfur. Give your answer and then, using this data, explain one difference in the physical properties of metals and non-metals.

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1670 - 115 = 1555°C difference. Metals usually have higher melting points than non-metals. °C (±1)

Also accept: Melting point difference calculated numerically and correct explanation about higher melting point for metals.

Common mistakes: Subtracting in the wrong order (getting a negative value); Not providing an explanation

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Marking points

M1 · 1 mark · Correct method to find the difference: subtracts lower melting point from higher.

A1 · 1 mark · Correct numerical answer: 1555°C (allow ±1°C).

B1 · 1 mark · Explains that metals generally have higher melting points than non-metals, using data.

Worked solution

Melting point of titanium = 1670°C Melting point of sulfur = 115°C

This shows that titanium (a metal) has a much higher melting point than sulfur (a non-metal). In general, metals have higher melting points than non-metals.