Incorrect 0/25 Question 26 Choose the period and group number for the following element by selecting from the drop-down
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Incorrect 0/25 Question 26 Choose the period and group number for the following element by selecting from the drop-down
Incorrect 0/25 Question 26 Choose the period and group number for the following element by selecting from the drop-down menu: Sodium is in period 2 group 3. Answer 1: 2 Answer 2: 3
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