Question detail
Which of the following best explains why elements are considered different naturally occurring types of atoms?
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. Because they have different numbers of electrons in their outer shells.
- B. Because they have different numbers of protons in their nuclei.
- C. Because they can form covalent bonds with other atoms.
- D. Because they are found in different physical states at room temperature.
Answer
The correct option is Because they have different numbers of protons in their nuclei.. 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 Because they have different numbers of protons in their nuclei.. Because they have different numbers of protons in their nuclei. 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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