Question

How many different types of elements make up one molecule of potassium perbromate, KBrO4?
a. 1
b. 3
c. 4
d. 6

Answer 1

The question asks for the different TYPES, so ignore how many molecules each has. The different kinds are:

K - potassium
Br - Bromine
O - Oxygen
 the answer is B

Answer 2

The correct answer is Option (B) 3

What is molecule?

• A molecule is the substance that is formed by the group of more than two atoms.  

What is an Element?

• An element is a pure substance composed of atoms that all have the same number of protons in the atomic nucleus.

How many different types of elements?

• There are three different elements present in given formula KBrO4
• The different elements are Potassium (K), Bromine (Br) and Oxygen (O)

Hence Option B is correct and rest are incorrect

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