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Type: Multiple-Choice
Category: Periodic Table and Elements
Level: Grade 10
Author: aronyano
Last Modified: 7 years ago

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Periodic Table and Elements Question

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Grade 10 Periodic Table and Elements

Which statement best explains why most atomic masses on the Periodic Table are decimal numbers?
  1. Atomic masses are determined relative to an O-16 standard.
  2. Atomic masses are an estimated average of the artificially produced isotopes.
  3. Atomic masses are a weighted average of the naturally occurring isotopes.
  4. Atomic masses are determined relative to an H-1 standard.