In the formula kbr, there is/are:

a. 1 potassium atom

b. 2 potassium atoms

c. 1 bromine atom

d. 2 bromine atoms

b. 1 Potassium  atom

c. 1 bromine atom

Explanation:

What is a compound?

A compound is a substance that is made up of atoms from different elements. The formula of a compound shows the elements making up the compound.Additionally, the formula of compound shows the number atoms of each element making up the compound.

In this case;

We are given the Formula KBr

This is the formula of the compound potassium bromide.From the formula, we can tell that the compound is made up of potassium and bromine atoms.The formula also shows the number of atoms of each element, that is, 1 potassium atom and 1 bromide atom.