The properties of an element mosly corresponds to that isotope which has greater_________________?
Correct answer: C. Relative abundance
- A. Mass number
- B. Atomic mass
- C. Relative abundance
- D. all of the above
Explanation
An element's observed atomic properties usually reflect the isotope that occurs in the greatest relative abundance, because that isotope contributes most strongly to the sample. Relative abundance refers to the percentage of atoms of each isotope. Students may choose a or b by assuming the heaviest isotope controls the properties, but mass number does not determine abundance.
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About Moles and Avogadro's Number
The mole connects the microscopic number of particles with measurable mass, using Avogadro's number, 6.022 × 10²³ particles per mole. Questions involve molar mass, conversion between mass, moles and particles, percentage composition, empirical and molecular formulas, and distinguishing atoms, molecules, ions and formula units.
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