Au
H2
O2
Cannot be separated into its constituent elements by physical methods
The subscripts they use indicate the number of atoms present in them.
C
Neutrons
CO2
N2
Honor to planets and stars.
HCl
Ag
Mythology.
O
H2SO4
In honor of names of scientists
Protons
They can be very simple or very complex, this depends on the number of atoms that form it and the way in which they combine
They refer to properties.
H2O
Names of places.
Electrons
It is a particle that cannot be cut