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A Group 1 element reacts with a Group 7 element, so that both elements have a full outer shell of electrons - OCR Gateway - GCSE Chemistry - Question 3 - 2022 - Paper 3
Question 3
A Group 1 element reacts with a Group 7 element, so that both elements have a full outer shell of electrons. The table shows what happens to both elements during the... show full transcript
Worked Solution & Example Answer:A Group 1 element reacts with a Group 7 element, so that both elements have a full outer shell of electrons - OCR Gateway - GCSE Chemistry - Question 3 - 2022 - Paper 3
Step 1
loses 1 electron
Answer
A Group 1 element typically loses one electron to achieve a full outer shell. A Group 7 element tends to gain one electron during a reaction with a Group 1 element. Therefore, the correct answer, supported by the principles of electron transfer in ionic bonding, is Row C where the Group 1 element loses 1 electron and the Group 7 element gains 1 electron.