What characteristic property differs between a neutral atom and its corresponding isotope_________________?
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Answer: A. mass number
Explanation
Isotopes of the same chemical element share identical atomic numbers but possess different neutron counts. Varying the number of neutrons directly changes the total mass number of the neutral atom. This difference in nucleon count distinguishes one isotope from another while keeping chemical identity identical. Atomic number defines the number of protons residing in the nucleus of a specific chemical element. Mass number represents the combined total sum of protons and neutrons located within an atomic nucleus. Neutral atoms maintain an equal number of electrons orbiting the nucleus to balance the positive proton charge.
Chemists and physicists use mass numbers to identify specific radioactive and stable isotopic tracers in research. Isotope separation processes rely on mass differences to enrich materials for nuclear and medical applications. Understanding isotopic variation is essential for analyzing geological dating samples and environmental pollution sources. Atomic number remains constant across all isotopes belonging to the same chemical element. Chemical properties remain virtually identical for different isotopes because electron configurations are the same. Position in the periodic table does not change because elements are ordered by atomic proton number.
- Subject
- Engineering
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- Mechanical Engineering
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- medium
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