Be is the chemical symbol for Beryllium.
That is the chemical symbol of an element, such a H for hydrogen, Hg for mercury, etc.
Mg2+
Heat added to catalyze a chemical reaction is represented by the Greek letter delta above the yield arrow.
At stands for astatine which is in group 7 of the periodic table.
Elemental sulfur is represented by the symbol S.
Each element on the periodic table is represented by a one- or two-letter chemical symbol. For example, hydrogen is represented by the symbol "H," oxygen is represented by "O," and gold is represented by "Au."
Sodium has the synbol Na and argon Ar.
A chemical compound is represented by a specific combination of chemical elements bonded together in a specific ratio. This combination is represented by a chemical formula that shows the type and number of atoms of each element in the compound.
The symbol for metal oxides is typically a combination of the chemical symbol for the metal and the chemical symbol for oxygen. For example, the metal oxide formed by aluminum and oxygen is represented as Al2O3, where "Al" is the symbol for aluminum and "O" is the symbol for oxygen.
Tantalum is represented by symbol Ta.It is chemical element with atomic number 73.It is a transition metal.
Carbon is a chemical element. It has the symbol C.
The chemical formula of carbon monoxide is CO.