Question detail
Which of the following is NOT a characteristic of an element?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Key ideas in chemistry
Question
- A. It is made up of one type of atom.
- B. It can be separated into simpler substances by a chemical reaction.
- C. It has a unique number of protons.
- D. It is naturally occurring.
Answer
The correct option is It can be separated into simpler substances by a chemical reaction.. This answer is correct because it matches the approved learning objective to describe elements as different naturally occurring types of atoms in the subtopic Universal chemistry ideas.
Explanation
The correct option is It can be separated into simpler substances by a chemical reaction.. It can be separated into simpler substances by a chemical reaction. is correct because it directly supports the approved learning objective to describe elements as different naturally occurring types of atoms. This belongs to the subtopic Universal chemistry ideas within Key ideas in chemistry, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Universal chemistry ideas.
Common mistake
Confusing Atoms and Elements
Students often think that atoms and elements are the same thing.
Remember that an atom is a single particle, while an element is a type of atom. For example, oxygen is an element made up of oxygen atoms.
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