English reading rules of chemical formula

These are nonmetals and nonmetals, which occur in carbon dioxide, carbon dioxide and sulfur trioxide.

Such as nitrous oxide, N2O3. It can be found that this combination way is that the element is directly in front, and the element is named according to how much oxygen there is.

The other is that metals and nonmetals are together. In other words, the second situation is also saved. Such as Bacl2 and barium chloride. Their changes are also concentrated in the back. Sulfite is sulfite, sulfate is sulfate, and sulfide is sulfur, which is the anaerobic one.

Extended data:

+Read the front in English. -read negation in English. Na+ = "N" "a and "A" are positive for (sodium ion), K+= "K" are positive for (potassium ion) and Ca2+= "C" and "A" are positive for (calcium ion). Cl- = "C" "l "negative.

Atoms; Atoms; Nuclear nucleus; Nuclear nucleus; Proton; Neutron; neutron

Electron electron (abbreviation e) ion [? Cation cation anion anion

Molecule [mlekj? l？ ] element element.

Compound.

Pure/chemical mixture

Relative atomic mass? Relative atomic mass (abbreviated as Ar) relative molecular mass (abbreviated as Mr) chemical quantity relative molecular mass substance quantity.