What does it mean when a symbol in a chemical formula is not followed by a subscript?

What does it mean when a symbol in a chemical formula is not followed by a subscript?

A subscript shows the number of atoms of an element in a compound. The subscript always refers to the symbol just before it in the formula. If there is no subscript following a symbol, it means there is only one of that kind of atom in the molecule.

What is included in a Compounds chemical formula?

The formula of a compound—such as CH4—indicates the types of atoms present, with subscripts representing the relative numbers of atoms (although the numeral 1 is never written). A water molecule is made up of two hydrogen atoms and one oxygen atom.

What else do subscripts in a formula tell us?

The numbers appearing as subscripts in the chemical formula indicate the number of atoms of the element immediately before the subscript. If no subscript appears, one atom of that element is present.

Which is not a compound in the given substances?

The following are examples of NOT compounds. Br2 , bromine, is a diatomic element, or a molecular element. Only one element is in its structure though, so it is not a compound. Ar , argon, is an atom; thus, it cannot be multi-atomic, and consequently is not a compound.

What do the numbers mean in chemical formulas?

The small number behind each element symbol designates the number of atoms of each element in a chemical formula. If there is no number, it is assumed there is only one of those elements. A large number in front of a compound designates how many units there are of that compound.

What does the formula tell us about a substance?

A chemical formula tells us the number of atoms of each element in a compound. It contains the symbols of the atoms of the elements present in the compound as well as how many there are for each element in the form of subscripts.

What are the different ways to represent compounds?

they can be represented by chemical formulas and molecular models. Type of formula/model used depends on how much info you have about the compound and how much you want to communicate.