Final answer:
An element is composed of only one type of atom, while atoms are the smallest particles that retain the characteristics of an element. Elements are indeed the simplest form of matter.
Step-by-step explanation:
True or false:
1. An element is composed of multiple types of atoms.
False. An element consists of only one type of atom. All atoms of an element have identical chemical properties.
2. An atom is the smallest particle of an element that has the characteristics of that element.
True. An atom is the smallest unit of an element that retains the chemical properties of that element.
3. Elements are the simplest form of matter.
True. Elements are the fundamental building blocks of matter and cannot be broken down into simpler substances.