QuestenaPractice that shows what to review next
SearchCreate a test
Question 43

Which value could be the mass number of one specified nuclide?

  1. 35.45
  2. 36Correct answer
  3. 39.95
  4. 63.55

Explanation

A mass number is a count of nucleons and therefore takes a whole-number value such as 36. Decimal values commonly printed in periodic tables are isotope-weighted averages, not mass numbers for single nuclides.

Continue with this test

Start practice
Understand this topic (≈6 min)Back to test
Question 43: Which value could be the mass number of one specified… · The Periodic Table and Elements · Questena