Question detail
Explain why an atom has no overall electrical charge when it contains equal numbers of protons and electrons.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Atoms and isotopes
Question
Explain why an atom has no overall electrical charge when it contains equal numbers of protons and electrons.
Answer
An atom has no overall electrical charge because the positive charge of the protons is balanced by the negative charge of the electrons. Since protons and electrons have equal but opposite charges, their equal numbers result in a net charge of zero.
Explanation
This question tests the understanding of atomic structure and the concept of electrical charge. It requires students to explain the balance of charges within an atom, reinforcing their knowledge of protons and electrons.
Common mistake
Understanding Electrical Charge in Atoms
Students often think that an atom has a charge because it contains protons and electrons.
Emphasize that an atom is neutral overall when it has equal numbers of protons and electrons, as their charges cancel each other out.
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