Which of these Period 3 elements has the highest melting point?
A - AQA - A-Level Chemistry - Question 17 - 2018 - Paper 3
Question 17
Which of these Period 3 elements has the highest melting point?
A. Aluminium
B. Phosphorus
C. Sodium
D. Sulfur
Worked Solution & Example Answer:Which of these Period 3 elements has the highest melting point?
A - AQA - A-Level Chemistry - Question 17 - 2018 - Paper 3
Step 1
Identify the elements
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Answer
The elements in question are Aluminium, Phosphorus, Sodium, and Sulfur, all of which are in Period 3 of the periodic table.
Step 2
Compare melting points
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Answer
Among the listed elements, the melting points are:
Aluminium: 660 °C
Phosphorus: 44.1 °C
Sodium: 98 °C
Sulfur: 115.2 °C
After comparing these values, Aluminium has the highest melting point of 660 °C.
Step 3
Provide the answer
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Answer
Therefore, the element with the highest melting point in Period 3 is A. Aluminium.
