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This question is about metals and non-metals - AQA - GCSE Chemistry - Question 1 - 2022 - Paper 1
Question 1
This question is about metals and non-metals. Figure 1 shows an outline of part of the periodic table. Figure 1 Element Q is a dull solid with a melting point of ... show full transcript
Worked Solution & Example Answer:This question is about metals and non-metals - AQA - GCSE Chemistry - Question 1 - 2022 - Paper 1
Step 1
Element Q is a dull solid with a melting point of 44 °C. Element Q does not conduct electricity. Which section of the periodic table in Figure 1 is most likely to contain element Q?
Answer
The most likely section to contain element Q is D, as it typically represents non-metals, which are dull and generally have low melting points.
Step 2
Step 3
Give two differences between the physical properties of the elements in Group 1 and those of the transition elements.
Answer
- Group 1 elements have lower melting and boiling points compared to transition elements.
- Group 1 elements are softer and less dense than transition elements, which tend to be stronger and harder.
Step 4
Complete Figure 2 to show the electronic structure of an aluminium atom. Use the periodic table.
Answer
The electronic structure of an aluminium atom can be represented as:
- 2 electrons in the first shell
- 8 electrons in the second shell
- 3 electrons in the third shell
Thus, the overall configuration is 2, 8, 3.
Step 5
Step 6
Step 7
Describe what happens when a magnesium atom reacts with an oxygen atom. You should refer to electrons in your answer.
Answer
When a magnesium atom reacts with an oxygen atom, magnesium loses two electrons to form Mg²⁺ ions, while oxygen gains those two electrons to form O²⁻ ions. This transfer of electrons results in the formation of ionic bonds between the magnesium ions and oxide ions, leading to the creation of magnesium oxide.