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30-08-2017
Chemistry

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What is the ROUNDED atomic number for this elements?
- Sodium
- Gold
- Potassium
- Silicon

(Thank you♡)

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dcfox100 dcfox100

10-09-2017

Sodium/Atomic number

11

Gold/Atomic number

79
Potassium/Atomic number

19

Silicon/Atomic number

14

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