Sample Problem 2.2
Determining the Number of Subatomic Particles in the Isotopes of an Element
PLAN:
Use atomic number and atomic masses.
SOLUTION:
The atomic number of silicon is 14. Therefore:
28Si has 14p+, 14e- and 14n0 (28-14)
29Si has 14p+, 14e- and 15n0 (29-14)
30Si has 14p+, 14e- and 16n0 (30-14)
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