Question

Why is a 13 placed in front of the oxygen on the perodic table

A) It is a subscript representing that there are 13 oxygen atoms in an oxygen molecule
B) It is a coefficient representing that there are 13 oxygen atoms in the reactants
C) It is a coefficient representing that there are 13 oxygen molecules in the reactants
D) It is a subscript representing that there are 13 oxygen atoms in the reactants

Answer 1

Oxygen comes 8th on the periodic table which is the atomic number.

Step-by-step explanation:

but Oxygen 13 (Isotopes of Oxygen) is when oxygen has 8 protons and electrons, and 5 neutrons (8+5=13)