What is the atomic number of sodium


Problem:

Question 1: A sodium atom has 11 protons, 12 neutrons, and 11 electrons.

The atomic number of sodium is

A) 11

B) 12

C) 23

D) 34

Question 2: If you place the probe of a pH meter in an unknown liquid and it reads pH 10, the liquid is

A) an acid

B) neutral

C) a base

Please choose the correct option.

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Biology: What is the atomic number of sodium
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