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2022 BGCSE Chemistry Paper-1 Question-12
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Q-50
The diagram should be used to answer question 12 and question 13. How did calcium and chlorine become charged particles?
Calcium gained two protons from two chlorine atoms.
Calcium lost two electrons from two chlorine atoms.
Two chlorine atoms gained one electron each from a calcium atom.
Two chlorine atoms lost one electron each to a calcium atom.
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