Elements 11-20

Enter the elements with the atomic numbers from 11-20
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nmaec
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Last updated: July 13, 2017
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First submittedJuly 13, 2017
Times taken97
Average score80.0%
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Hint
Answer
11
Sodium
12
Magnesium
13
Aluminium
14
Silicon
15
Phosphorus
16
Sulfur
17
Chlorine
18
Argon
19
Potassium
20
Calcium
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