
Concept explainers
Interpretation: By using the word, as many word “compound” as is possible with 9 elements needs to be formed. The difference between an element and a compound needs to be explained.
Concept Introduction: Matter is something that has mass and volume. Almost everything around us is considered as matter except gas; it is made up of very small particles. All materials are made up of tiny particles, known as atoms.

Answer to Problem 2RQ
Element contains only one type of atom, whereas Atoms are the particles that make up matter.
Explanation of Solution
The various permutations of valid elements from the word "chemistry" are:
- C
- Ce
- Cm
- Cs
- Cr
- H
- He
Now, you have any 9 of these at your disposal when making compounds. Let us choose the easiest elements to use: C, Cs, H, I, S, Se, Si, Sr. None of those are
Elements is a substance, which have only single kind of atoms, whereas compound has two or more than two different kinds of atoms.So, atoms make up elements, but elements do not make up atoms.
Chapter 2 Solutions
World of Chemistry
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