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29-09-2020
Mathematics

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29-09-2020

Answer:

Answer: A) Sodium Na and Magnesium Mg

Explanation:

In the period table, you can see that Sodium (group 1) has 11 protons, and Magnesium (group 2) has 12 protons. 11+12=23 protons

Step-by-step explanation:

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