Question 1
Question detail
Explain the existence of isotopes using different neutron numbers.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Atomic structure
Question
Explain the existence of isotopes using different neutron numbers.
Answer
Isotopes are variants of the same element that have the same number of protons but different numbers of neutrons. For example, carbon-12 has 6 protons and 6 neutrons, while carbon-14 has 6 protons and 8 neutrons. This difference in neutron number results in different mass numbers for the isotopes.
Explanation
This answer is strong because it clearly defines isotopes and provides specific examples to illustrate the concept. The question tests the understanding of atomic structure and the role of neutrons in defining isotopes.
Common mistake
Confusing Isotopes with Ions
Students often confuse isotopes with ions, thinking they are the same because both involve variations of atoms.
Remember that isotopes have the same number of protons but different numbers of neutrons, while ions are atoms that have gained or lost electrons, resulting in a charge. For example, Carbon-12 and Carbon-14 are isotopes of carbon, while Na+ is a sodium ion.
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