Question

Carbonate = CO₃²⁻. What number is in the carbon location on the right figure, and what does this number refer to?

a) 3, number of oxygen atoms
b) 2, charge of the ion
c) 4, number of carbon atoms
d) 1, atomic number of carbon

Answer 1

The number in the carbon location on the right figure refers to the atomic number of carbon, which is 6.

Step-by-step explanation:

The number in the carbon location on the right figure is 1. It refers to the atomic number of carbon, which is 6. The atomic number represents the number of protons in the nucleus of an atom. In this case, carbon has 6 protons.