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Which group on the Periodic Table of the Elements contains elements that react with oxygen to form compounds with the general formula X2O? (1) Group 1 (3) Group 14 (2) Group 2 (4) Group 18
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Which group on the Periodic Table of the Elements contains elements that react with oxygen to form compounds with the general formula X2O?

(1) Group 1 (3) Group 14
(2) Group 2 (4) Group 18

User Urbley
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Group (1) is alkali metal and its elements have 1 valence electron. Oxygen (O) valency is 2, and together they can form compounds with the general formula X2O.

Therefore, (1) Group 1 is the correct answer.

Hope this helps~
User Roqz
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