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Periodic Table of Elements Atomic Numbers #1-20

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rutunuwa's version from 2017-01-15 05:52

Section 1

Question Answer
1Hydrogen
2Helium
3Lithium
4Beryllium
5Boron
6Carbon
7Nitrogen
8Oxygen
9Fluorine
10Neon
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Section 2

Question Answer
11Sodium
12Magnesium
13Aluminum
14Silicon
15Phosphorus
16Sulfur
17Chlorine
18Argon
19Potassium
20Calcium
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