Nucleus A decays to nucleus B, with a half-life of 10 minutes.

A pure sample of nucleus A contains 24,000 particles. Using what you've learned in Figure 30.16, after 30 minutes the sample will contain A. 3000 particles of nucleus B.

B. 4000 particles of nucleus B.

C. 12,000 particles of nucleus B.

D. 20,000 particles of nucleus B.

E. 2 1,000 particles of nucleus B.

Transcribed Image Text:

FIGURE 30.16 The decay of a sample of radioactive nuclei. There are No nuclei at 10 No After one half-life, half the nuclei have decayed. No No No No 0 The decay process is random. Half the nuclei will decay in one half-life, but we can't predict which ones. Nuclei don't vanish when they decay. A decayed nucleus becomes another kind of nucleus. No No Undecayed nucleus Daughter nucleus No 0 3112 21112