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.